Mathematics College

plzzzzzz help meeeee​

Plzzzzzz Help Meeeee

Answers

Answer 1

Answer:

Step-by-step explanation:

For A, 7x=21, it is asking, 7 multiplied by what number is 21? We can try to figure it out. Let's start with 0.

7(0)≠21

Then 1.

7(1)≠21

7(2)≠21

7(3)=21

Therefore, for question a, the answer is 3.

For question b, it's asking 6 minus what is 2.

With this one, we can say it is 4, since 6-4=2.

Now moving on to B.

a) 2x+4=16

We need to isolate x in order to find it's value.

So we can begin with subtracting 4 from both sides, getting us:

2x=12

Then, if we divide both terms by 2, we get x.

x=12/2

x=6.

b)

3 x (z/4)=9

Again, we need to isolate z.

So, we multiply both sides by 4, getting us

3z=36

then we divide by 3

z=36/3

z=12

c) 16-x=2

Here we simply subtract 16 from each side, then flip the signs to get positive x.

So, 16-x=2

-x=-14

x=14

d) 4k=20

This is essentially asking, 4 times what number is 20?

So we can divide both sides by 4 and get

k=20/4

k=5

Related Questions

Plz help I need help

Answers

Answer:

x = 6

Step-by-step explanation:

This can be written as a ratio

7 : 2

21 : x

If you times one side by 3, you have to multiply the other side by three too:

2 × 3 = 6

∴ x = 6 when y = 21

In 1993, the moose population in a park was measured to be 4350. By 1999, the population was measured again to be 4890. If the population continues to change linearly: Find a formula for the moose population, P , in terms of t , the years since 1990.

Answers

Answer:

P = 90t

t = 31 years

Step-by-step explanation:

the nth term of a sequence is n(n-8)÷√n+3
find the 1st and 6th terms

Answers

Answer:

-4 and -2✓6+3

Step-by-step explanation:

use pemdas

1(1-8)÷✓1 + 3

-7÷1+3

-4

6(6-8)÷✓6+3

-12÷✓6+3

multiply fraction by ✓6 on bottom and top to get rid of square root on bottom

-12✓6÷6+3

divide -12 by 6 and put radical next to it

-2✓6+3

Bag A contains 3 red balls and 1 blue ball. Bag B contains 1 red ball and 1 blue ball. You perform the following experiment. First, randomly pick one ball from each bag. Next, place the ball from bag A into bag B and the ball from bag B into bag A. What is the expected number (or mean) of red balls in the bag A

Answers

Answer:

2

Step-by-step explanation:

because the tree you must have more red balls than blue

Y=6x+13 x-intercept and y-intercept

Answers

Answer:

y int (0, 13)

x int (-13/6,0)

just make the x = 0 and solve to get y

same with the x make y =0 and solve

You buy tomatoes sauce for 0.37per ounce. One portion of potatoes gnocchi requires 3.5 ounces of tomatoe sauce. How much does the sauce for one portion cost

Answers

Answer:

it would cost $0.74 = 74 cents

Step-by-step explanation:

The cost of one ounce of tomato = $0.37

1 portion of potato gnocchi requires 2 ounces of tomato sauce.

To find the cost of one portion of the potato gnocchi, we have to simply find the cost of 2 ounces of tomato sauce.

That is:

Cost = 2 * 0.37 = $0.74

Hence, one portion of potato gnocchi costs $0.74

Since $1 = 100 cents, the cost in cents will be:

0.74 * 100 = 74 cents

HELP

slope = 1; y-intercept =8

Answers

Answer:

[tex]y = mx + c \\ m = 1 \\ c = 8 \\ y = 1x + 8 \\ y = x + 8[/tex]

Given :-

slope = 1 y intercept = 8

To find :-

The equation of the line .

Solution :-

We know that ,

y = mx + c

On substituting ,

y = 1*x + 8 y = x + 8

a number is ____ by another number if the quotient is a counting number and the remainder is 0.

Answers

A number is divisible by another number if the quotient is a counting number and the remainder is 0.

Guys please help this is making my brain hurt I will give brainliest btw

Answers

Answer:

in order from the top down

2,5,1,4,5

Alright so I will explain this as best as I can, in an image

Choose the scientific notation for 0.01.
O 1x 10-4
O 1x 103
O 1x 10-2
O 1x 101

Answers

I believe it’s the third one hope it helps

Answer:

1×10-2

Step-by-step explanation:

10-2 = 1÷100 =0.01×1 = 1× 10-2

50!
4! 46!

How do I solve this? I learned it yesterday

Answers

Answer: 50! = 3.0414093e+64.       4!= 24.     46!=5.5026222e+57

Distance between the lines 3x +4y =9 and 6x + 8y =15 is

Answers

ANSWER:

81

hope it helps you

can you BRAINLEST me

Answer:

0.3 units

Step-by-step explanation:

Given lines in standard form:

ax + by = c3x +4y =9 and 6x + 8y =15

We can see they have same slopes:

m = -3/4 and m = -6/8 = -3/4

The lines after simplification of the second one:

3x + 4y = 9 3x + 4y = 7.5

Since the lines are parallel, use the distance formula:

[tex]d= |c_1-c_2|/\sqrt{a^2+b^2}[/tex]

Substitute the values and find d:

[tex]d = |9-7.5|/\sqrt{3^2+4^2} = |1.5|/\sqrt{25} =1.5/5=0.3[/tex]

troy is going to spain and needs to convert his dollars to Euros. He knows that when he goes, $5.00 is equivalent to about 3.45 Euros.

29. Find the unit rate of Euros per dollar

30. how many Euros will he get for $125?

Answers

Step-by-step explanation:

answer for number 2 is 85 euros

.68 euros per usd

CAN SOMEONE PLEASE HELP ME WITH THIS ASSIGNMENT, I’D BE SO THANKFUL

Answers

Please help me with my questions

which of the following is not a perfect tube 1, 9, 8,27​

Answers

Answer:

9

Step-by-step explanation:

9 is not a cube number; it is 3 squared. 3³ is 27, 1³ is 1 and 2³ is 8.

9 is not a perfect cube because ∛9 is not a whole number.

Hope this helps!


[tex]1 - \frac{1}{5} \times 2 + 0.5[/tex]
tolong jawab kalau bisa sama penjelasan nya​

Answers

Answer:

here is my solution for that problem. i hope it will work.

[tex] = \frac{11}{10} \\ \\ \\ in \: \: alternate \: form \\ \\ 1 \frac{1}{10 \: \: \: } \: \:,1.1[/tex]

hope it helps

Which is an equation of the line through the origin and (3,4)? Please help
A. y = 4/3x
B. y = 3/4x
C. y = 4x
D. y = 3x

Answers

B is the answers………..

The perimeter of a rectangular garden is 332 m.
If the length of the garden is 93 m, what is its width?

Answers

Answer:

73

Step-by-step explanation:

332÷2= 166

166 - 93 = 73

Write the equation of the line parallel to y=6 that passes through the point (2, -3). Write your answer in slope-intercept form.

Answers

Answer:

Y=-3

You see y=-3 does pass through 2,3 and is also parallel to y=6

Plz help I need help

Answers

They are proportional

4. Allen is showing his work in simplifying -8.3 + 9.2 - 4.4 + 3.7. Identify and explain any errors in his work or in his reasoning. Write feedback to Allen explaining the mistake he made and how to correct his work. (5 points) Step Work Reasoning −8.3 + 9.2 − 4.4 + 3.7 Original problem 1 −8.3 + 9.2 + 4.4 + 3.7 Additive inverse 2 −8.3 + 4.4 + 9.2 + 3.7 Commutative property 3 −8.3 + (4.4 + 9.2 + 3.7) Associative property 4 −8.3 + 17.3 Simplify 5 9 Simplify

Answers

Answer:

-8.3 + 9.2 - 4.4 + 3.7

= -8.3 + 9.2 + (-4.4) + 3.7            {Additive inverse}

= -8.3 + (-4.4) + 9.2 + 3.7            {Commutative Property}

= [ -8.3 + (-4.4] + [ 9.2 + 3.7]       {Associative property}

=  - 12.7 + 12.9

= 0.2

Step-by-step explanation:

Simplify the expression the square root of 4x^2/3y. Show your work.

Answers

Answer:

2x/3y

Step-by-step explanation:

√4x^2/3y

√4√x^2/3y

2x/3y

please answer the question above​
it's (Septagon)

Answers

Answer:

128.57

Step-by-step explanation:

each angle is equal and all of them will sum 900 degrees

Answer:

128.6... degrees

Step-by-step explanation:

Because regular shapes have all equal angles, we can do this:

900/7

regular septagons/heptagons have 7 sides

900/7 = 128.571429 or about 128.6

I have more questions then this

Answers

Answer:

maybe 3 option

Step-by-step explanation:

hope helpful

have a great day

For every five candy bars David sells, he earns $1. How many candy bars he sell to earn $15 please help​

Answers

Answer:

75

Step-by-step explanation:

5 candy bars =1 dollar what about 15 dollars

Answer:

75 candy bars

Step-by-step explanation:

because 15 x 5 = 75. we got 15 because that's the total amount of money he got and we got 5 because every 5 candy bars.

Connor was traveling in Mexico and is returning to his home in the United States.
He has 2,567 pesos left. The current exchange rate is 1 U.S. dollar is equal to 19.43
pesos. How many U.S. dollars will he have if he converts his leftover pesos to
dollars?
$2,567
$102.68
$132.12
$3,414

Answers

Answer:

$132.12

Step-by-step explanation:

19.43 pesos = $1

2567 pesos = ?

1. First divide 2567 by 19.43 to find the exact number of dollars:

2567 ÷ 19.43 = 132.1152856

2. Round this value to 2 decimal places:

132.1152856 ≈ $132.12

Step-by-step explanation:

19.43 pesos = 1 U.S. dollar

So 1 peso = [tex]\frac{1}{19.43}[/tex] U.S. dollar

2567 pesos = [tex](\frac{1}{19.43} )(2567)[/tex] U.S. dollar

= 132.115286 U.S. dollar

please give me a brainliest answer

The increasing on the intervals
The decreasing on the intervals

Answers

do you need the technical term? or the normal term? there’s multiple answers for both

what is the solution to this inequality?
3n > 45.


A. n>15
B. n>42
C. n>48
D. n>135​

Answers

Answer:

the answer to your problem is c

Evaluate.
plz help
12⋅(14+13)2+23

Enter your answer as a mixed number in simplest form by filling in the boxes.

Answers

Answer:

52

Step-by-step explanation:

14+13= 27+2=29+23=52

The value of the numerical expression 12 ⋅ (14 + 13)² + 23 will be 8771.

What is the value of the expression?

When the relevant factors and natural laws of a mathematical model are given values, the outcome of the calculation it describes is the expression's outcome.

The expression is given below.

⇒ 12 ⋅ (14 + 13)² + 23

Parenthesis, Exponent, Multiplication, Division, Addition, and Subtraction are all part of the PEMDAS formula. To answer the problem properly and accurately, this rule must be followed.

⇒ 12 ⋅ (14 + 13)² + 23

⇒ 12 ⋅ (27)² + 23

⇒ 12 ⋅ 729 + 23

⇒ 8748 + 23

⇒ 8771

The value of the numerical expression 12 ⋅ (14 + 13)² + 23 will be 8771.

More about the value of the expression link is given below.

brainly.com/question/23671908

#SPJ5

Which of the following algebraic expressions will translate “the sum of eight and twice w”?

A: 8 + w
B: 2(8) + w
C: 8 = 2w
D: None of these choices are correct.

Answers

d

8+2x is the correct answer

None of them have a great day
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