rounding to 1 significant figure, estimate the answers to these questions:
a)
78 x 92
b)
615 x 38
c)
423 x 764

Answers

Answer 1
a. Is 7,176

b. 23,370

c. 323,172

Related Questions

Nana plants 3 red roses bushes for every 4 yellow rose bushes in her garden. If she plants 12 red rose bushes, how many yellow will she plant? Number only

Answers

Answer:

16

Step-by-step explanation:

Given that:

For every 3 red roses bushes for every 4 yellow bushes are planted by Nana in her garden.

Let us first have a look at the ratio of red roses bushes and yellow bushes.

Number of red roses bushes : Number of yellow bushes = 3 : 4

Now, we are given that there are 12 red rose bushes planted.

To find: How many yellow rose bushes Nana will plant?

Solution:

Let us use unitary method for finding the required answer.

Number of yellow rose bushes for every 3 red roses = 4

Number of yellow rose bushes for every 1 red rose = [tex]\frac{4}{3}[/tex]

Number of yellow rose bushes for every 12 red rose = [tex]\frac{4}{3}\times 12 = 4\times 4 = \bold{16}[/tex]

Therefore, the answer is 16.

Norman purchased 3.5 lb. Of his favorite mixture of dried fruits to use in a trail mix. The total cost was $16.87. How much does the fruit cost per pound?

Answers

Answer:

$4.82

Step-by-step explanation:

Given that:

The total cost of the fruit is $16.87

And Norman purchased 3.5 lb of his favorite mixture of dried fruits.

The cost of the fruit per pound can be calculated by dividing the total cost of fruit by the total amount of pounds of fruit purchased.

i.e.

The cost of the fruit per pound = $16.87/3.5

The cost of the fruit per pound = $4.82

Does anyone know this. whoever answers first and correct ill give brainliest

Answers

Answer:

5.49 x 10^14

Step-by-step explanation:

The calculator is showing the scientific notation but instead of EE, it changes to x 10 ^

Yousef typed a 36-word paragraph in 2/3 minute. What is his typing speed, in words per minute?

Answers

If he types 36 words in 2/3 of a minute, we first need to find out what his speed is in 1/3 of a minute.

To do this, we divide 36 by 2 which gives us 18.

So if Yousef can type 18 words in 1/3 of a minute, we multiply 18 by 3 to work out how many words he types per minute.

18 x 3 = 54

Therefore Yousef types 54 words per minute.


Another method:

Another method to do this would be to take the 36 and divide it by 2/3 which would give us 54.

The line represented by the equation 3x + 5y = 2 has a slope of negative StartFraction 3 Over 5 EndFraction.. Which shows the graph of this equation?

Answers

Answer:

B)

:))))))))))

Answer:

B

Step-by-step explanation:

If there are 420 students surveyed, which equation can be used to find the number of students s who prefer rap? Pop: 5/8 Jazz: 1/8 Rap: 1/4 Answers: A. 1/4s = 420 B. S = 1/4 * 420 C. S + 1/4 = 420 D. 420 + s = 1/4

Answers

Answer:

B. [tex]s=\dfrac{1}{4}\times420[/tex]

Step-by-step explanation:

Total number of students surveyed = 420

Of which only [tex]\dfrac{1}{4}[/tex] prefer rap.

So, the number of people who like rap is the product of the fraction of people who prefer rap and the total number of students.

[tex]\text{Number of students who prefer rap}=s=\dfrac{1}{4}\times420\\\Rightarrow s=105[/tex]

The number of students that prefer rap is 105

So the equation is [tex]s=\dfrac{1}{4}\times420[/tex].

Una antena de televisión será sujeta con un cable de 6 m de longitud de la parte superior de la misma, a una argolla que se encuentra en el piso de la azotea, con un ángulo de inclinación de 60° con respecto al piso, ¿qué longitud tiene la antena?

Answers

Answer:

5.196 m

Step-by-step explanation:

p = La perpendicular del triángulo es la longitud de la antena.

h = La hipotenusa del triángulo es la longitud del cable conectado a la parte superior del poste = 6 m

[tex]\theta[/tex] = Incline el cable con el suelo = [tex]60^{\circ}[/tex]

De las funciones trigonométricas sabemos que

[tex]\sin\theta=\dfrac{p}{h}\\\Rightarrow p=h\sin\theta\\\Rightarrow p=6\times \sin60^{\circ}\\\Rightarrow p=6\times\dfrac{\sqrt{3}}{2}\\\Rightarrow p=3\sqrt{3}\\\Rightarrow p=3\times 1.732=5.196\ \text{m}[/tex]

La longitud de la antena es 5.196 m.

here are 180 candies in a candy shipment. There are Gobs, Blobs, and Toffees. The bage are made in ratio of 4:2:3 of Gobs, to Blobs to Toffees.
Gobs cost $1.50 each, and blobs cost $2.50 each.
The total cost of all the candy shipment is $430. What is the cost for each toffee?

Answers

Answer:

The answer to the cost for each toffee is given below:

Step-by-step explanation:

The computation of the cost for each toffee is shown below:

Given that

There are a total 180 candies hat includes three types  in a ratio of 4:2:3

Gobs = 4 ÷ 9 × 180 = 80

Blobs = 2 ÷ 9 × 180 = 40

Toffees = 3 ÷ 9 × 180 = 60

Now the total cost of all the candies shipment is $430

So,

The equation would be

80 × $1.50 + 40 × $2.50 + 60 × per cost = $430

120 + 150 + 60 × per cost = $430

60 × per cost = $430 - $120 - $150

60 × per cost = $160

Per cost is $2.67

So for toffees it would be 160

someone help me with this please

Answers

Answer:

7.5+8

Step-by-step explanation:

b: 6 Point: (-4, 2)
Solve for y=mx+b
Please help

Answers

Answer:

y=-4x+2

Step-by-step explanation:

B is the y-intercept and M is the sope, or x, knowing this now we slove:

(-4, 2)

m    b

y=mx+b

y=-4x+2

Have a beautiful day! v(⌒o⌒)v♪

For more help take a look at the picture below.

Write the equation of the line fully simplified slope-intercept form.

Answers

Answer:

y = -x/6 + 2

Step-by-step explanation:

Answer:

y=2-1/6x

Step-by-step explanation:

andre is writing a paper for science class he can type 30 words per minute what is the ratio of words to minutes

Answers

Answer:

30words

60

30/ 60 = 1/2

The ratio is 1:2

Thank you and please rate me as brainliest as it will help me to level up

What's the slope of this line

Answers

Answer:

slope= 1/2x-3

Step-by-step explanation:

Rise / run + the y intercept

FOR A TEST!! HELP! Complete the similarity ratio for the similar triangles.

Answers

Answer:

add them up

Step-by-step explanation:

add 8 10 10 and 80 25 20

Sarah pained her birdhouse this weekend. She painted 1/5 of her birdhouse with 2/3 cans of paint. How many cans of paint will she need to complete her birdhouse

Answers

Answer:

8/3 or 2.666666..........

Step-by-step explanation:

20% = 2/3

100 / 20 = 5

so it will take 5 * 2/3 or (10/3) to paint the whole house

but use had used 2/5

so the  Answer is (10/3) - (2/5) = 8/3

( 6 x − 10 ) + 1 3 ( 6 + 9 x )

Answers

Answer:

123x + 68

Step-by-step explanation:

Pull out like factors :

6 + 9x  =   3 • (3x + 2)

(6x - 10) +  39 • (3x + 2)

Final result : 123x + 68

Answer:

123x + 68

Step-by-step explanation:

(6x - 10) + 78 + 117x

6x - 10 + 78 + 117x

123x + 68

I NEED ANSWER ASAP. BRAINLIEST​

Answers

Answer:

Wait I just realized, none of them are cubic? for a polynomial to be cubic it needs to be [tex]x^{3}[/tex]

Conocido popularmente como el Lanzón, es una escultura elaborada por la cultura Chavín de Perú. Este gran monolito data, aproximadamente, del año 1000 a. C. y está situado en el Viejo Templo del centro religioso y ceremonial de Huantar.

Cierto día en una visita cultural, Pedro decide representar el Lanzón Monolítico con una escala de 1:103 cuya medida es de 4,41 cm.
Teniendo en cuenta los datos de la situación. ¿Cuánto mide la altura real exacta del Lanzón en metros?

Answers

Answer:

La altura real del Lanzón Monolítico es de 453.23 centímetros, o 4.53 metros.

Step-by-step explanation:

Dado que la representación a escala del Lanzón Monolítico mide 4,41 centímetros, y que dicha escala tiene un valor de 1:103 respecto de la medida real de la escultura, para representar la altura real de la misma se requiere realizar el siguiente cálculo:

1 = 4,41

103 = X

(103 x 4,41) / 1 = X

454.23 = X

Por lo tanto, la altura real del Lanzón Monolítico es de 453.23 centímetros, o 4.53 metros.

If you cut 10 ounces of butter into 2/5 ounce pieces, how many 2/5 ounces of butter will you have?

Answers

Answer:

what are the answer choices

Step-by-step explanation:

The answer is 5. Most probably

Which statement is true about the equations –3x + 4y = 12 and x - y = 1?
A. The system of the equations has exactly one solution at (-8, 3).
B. The system of the equations has exactly one solution at (-4, 3).
C. The system of the equations has no solution, the two lines are parallel.
D. The system of the equations has an infinite number of solutions represented by either equation.

Answers

Answer:

b.the system of the equations has exactly one solution at(-4.3).

Find the common difference of the arithmetic sequence 13, 18, 23, ...

Answers

Answer:

5

Step-by-step explanation:

To find the common difference you just find the difference between each number. 18-13=5,  23-18=5,  etc.

Answer: awnswer mine for 53 points

Step-by-step explanation:

Answer both question carefully. All help needed on this. Thank you!

Answers

Answer:

9) It will be congruent to the original image. Or stay the same.

10) It gets enlarged

Step-by-step explanation:

Does anybody know what 4/5 ( + 1) is in standard form.

Answers

Answer:

1 4/5

Step-by-step explanation:

4/5 + 1 = 1 4/5

I hope this helped, please mark Brainliest, thank you so much!!

A study found that 8% of dog owners brush their dog's teeth. Of 25 dog owners, about how many would be expected to brush their dog's teeth? *

10 points
(1) 8
(2) 25
(3) 2
(4) 17

Answers

(3) 2. Just do 2/25 and it equals .08 same as if u we’re trying to find a grade on a test there’s also a button on the calculator if u need help moving from decimal to fraction or percentage

Simplify: (2a)(-5b)
?

Answers

Answer:

-10ab

Step-by-step explanation:

(2a)(-5b)

Multiply the constants

2* -5 = -10

Multiply the variables

a*b = ab

Combine

-10ab

The expression -10ab represents the product of 2a and -5b

To simplify the expression (2a)(-5b), we can multiply the coefficients and combine the variables.

Multiplying the coefficients, 2 and -5, gives us -10.

For the variables, we multiply the like terms, which in this case are 'a' and 'b'. When we multiply 'a' and 'b', we simply write them side by side: ab.

Therefore, simplifying (2a)(-5b) results in -10ab.

The expression -10ab represents the product of 2a and -5b, combining the coefficients and variables into a single term. It is important to note that the order of the variables, 'a' and 'b', is maintained in the simplified form.

Learn more about expression here

https://brainly.com/question/11570526

#SPJ6

Describe the process for
graphing the equation
y =-1/2x- 1

Answers

the formula is y=mx+b

m is the slope

b is the y-intercept form

so the -1 is the y-intercept form. so you need to start at that point on the y axis. then the slope which is -1/2 comes into play. in my school we use rise/run. so from the point you marked at -1 you will go down 1 and to the right 2 points then where you stop is your next point (mark it) keep doing that. also go up the other way from the -1 point. go up 1 and to the left 2. then connect all of your points with a line. I hope this helped.

please chose this answer as brainliest

Seventeen out of 20 teens said they eat breakfast every morning. What is the reasonable prediction for the number of teens out of 1,280 who eat breakfast every morning?

A.
340

B.
940

C.
1088

D.
1260

Answers

Answer:

The correct answer is C. 1088

Orchestra Tonight is selling tickets for its local performance. Orchestra fans can buy tickets to sit in the balcony or on the floor of the concert hall. Tickets for floor seats are $83 each. Tickets for the balcony are 60% of the price of the floor tickets. Which inequality represents all possible combinations of f, the number of tickets for floor seats, and b, the number of tickets for balcony seats, that a person can buy and spend no more than $560?

Answers

Answer:

[tex]83f+49.8b \leq 560[/tex]

Step-by-step explanation:

Given that the cost of 1 floor ticket = $ 83.

Cost for f floor tickets = $ 83f

Ticket for 1 balcony ticket = 60% of floor ticket.

= 0.60 x 83 = $49.8

Cost for b balcony tickets = $ 49.8b.

Total cost for f floor tickets and b balcony tickets, C= 83f+49.8b.

As the person can spend a maximum of $560,

So, [tex]C\leq 560[/tex]

[tex]\Rightarrow 83f+49.8b \leq 560[/tex].

Hence, the required inequality is [tex]83f+49.8b \leq 560[/tex].

You tape two pieces of paper together that each measure
41.36 cm. You then cut off 21.99 cm.
How long is the paper?

Answers

Answer:

The paper is 60.73 cm long.

Step-by-step explanation:

The two pieces of paper each measure 41.36 cm, so those together would be 82.72 cm. Subtracting the 21.99 that is cut off, you're left with 60.73 cm. Hope this helped!

^^^ they are 100 correct :)

What is the slope of y=-3x - 2?*

Answers

Answer:

-3!

Step-by-step explanation:

The slope is always listed right before the x in any slope-intercept form. It can be negative or positive, or even a fraction. In this case, it's -3!

I really hope this helps!

Answer:

-3 is the slope

Step-by-step explanation:

y = mx + b.

The variable m represents the slope. So, what ever number replaces the variable m(-3) is the slope.

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