Mathematics High School

What is the value of the expression below?

7 divided by 2 minus 4.5 x times 3 + 8
–16.5
–2
5
30.8
hurry up plz

Answers

Answer 1

Answer:

-2

Step-by-step explanation:

use pemdas, it works to help you get the correct answer

Answer 2

Answer:

− 13.5 x − 7

Step-by-step explanation:

Related Questions

Work out the base of a square with area 225cm²​

Answers

Answer:

15cm

Step-by-step explanation:

Given parameters:

Area of the square = 225cm²

Unknown:

Base  = ?

Solution:

A square is a figure with equal sides.

Area of a square  = L²

L is the side length

    225cm²  = L²

       L = √225

       L = 15cm

The base of the square is 15cm

 

Step-by-step explanation:

answer .................

is −2π rational or irational?

Answers

Irrational.
Rational means that you can write it as a fraction, you cannot express pi as a fraction therefore it’s not rational

Carri is trying to run a certain number of miles by the end of this month. If Carrie is 55% of the way to achieving her goal and she has already run 11 miles, how many miles is she trying to run by the end of this month

Answers

Answer:

20 miles

Step-by-step explanation:

Let

x = total number of miles she wish to run the end of this month

If Carrie is 55% of the way to achieving her goal and she has already run 11 miles

55% of her total miles = 11 miles

55% of x = 11 miles

55/100 * x = 11 miles

0.55x = 11

Divide both sides by 0.55

x = 11 / 0.55

= 20

x = 20 miles

x = total number of miles she wish to run the end of this month = 20 miles

She is trying to run 20 miles by the end of this month

What is the solution to this equation? Show your work. -7n + 29 = -5(n - 7)

Answers

-7n + 29 = -5(n - 7)
-7n + 29 = -5n + 35
-7n + 5n = 35 - 29
-2n = 6 —> divide by 2
2 2 = (n= -3 <— answer )

Ashley needs to rent tables and chairs for a fashion show that she is coordinating. The round tables rent for $8 each and the white wooden chairs rent for $2.25 each. She needs to rent the tables and chairs in a 1-to-6 ratio. If she has a $525 budget, which of the following combinations should she choose?

Group of answer choices

22 tables and 132 chairs

23 tables and 136 chairs

24 tables and 142 chairs

25 tables and 150 chairs

Answers

The answer is number 3 :)

Answer:

3

Step-by-step explanation:

Linda conducted a school survey and asked 8th-grade students about their favorite NFL team. The results are in the table below. Based on the results of the survey, what was the probability of an 8th-grade student choosing the Pittsburgh Steelers as their favorite NFL team?

Answers

Answer:5oo

Step-by-step explanation:

Starting from the same place a plane took 1 hr longer to fly 705 mi to Atlanta, than to fly 470 mi to New Orleans. If the plane flew at the same rate for the entire trip, what was the flying time for the shorter leg? a. 1 2 hr c. 1 1 2 hrs b. 1hr d. 2 hrs

Answers

Answer: d. 2 hrs

Step-by-step explanation:

Let x = Time taken(in hours) to fly 470 mi to New Orleans. (Shorter leg)

Then Time taken to fly 705 mi to Atlanta= x+1 (longer leg)

Since  the plane flew at the same rate for the entire trip.

i.e. Speed 705 mi to Atlanta = Speed to fly to New orleans

[tex]\Rightarrow\ \dfrac{705}{x+1}=\dfrac{470}{x}\ \ \ \ \ \ \ [\text{Speed}=\dfrac{\text{Distance}}{\text{Time}}]\\\\\Rightarrow\ 705x=470(x+1)\\\\\Rightarrow\ 705x=470x+470\\\\\Rightarrow\ 705x-470x=470 \\\\\Rightarrow\ 235x=470\\\\\Rightarrow\ x=\dfrac{470}{235} \\\\\Rightarrow\ x=2[/tex]

hence, the flying time for the shorter leg = 2 hours

So (d) is the correct option.

SI Unit is used for scientific work why?​

Answers

Answer:

SI is used in most places around the world, so our use of it allows scientists from disparate regions to use a single standard in communicating scientific data without vocabulary confusion.

2.9(x) = 4x + 8 What is g(8)?​

Answers

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[tex]g(x) = 4x + 8[/tex]

[tex]g(8) = 4(8) + 8[/tex]

[tex]g(8) = 32 + 8[/tex]

[tex]g(8) = 40[/tex]

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the anwser is : g(8)=40

x – 3.5 = 14.9, x = ?

Answers

Answer:

x = 18.4

Step-by-step explanation:

x - 3.5 = 14.9

Add 3.5 to both sides.

x = 14.9 + 3.5

x = 18.4

Answer:

x = 18.4

Step-by-step explanation:

x - 3.5 = 14.9

   + 3.5    +3.5

---------------------

x = 18.4

84.7g of sugar is needed to make 11 cakes. How much sugar is needed for 5 cakes

Answers

Answer:

38.5 grams of sugar for 5 cakes

Step-by-step explanation:

Set up a ratio of grams to cakes

84.7g:11

How much for 1 cake(unit rate because you want sugar over cakes)?

Just divide by 11.

7.7g:1

But you need 5 cakes so multiply by 5

38.5g:5

Answer:

Step-by-step explanation:

First divide 84.7 and 11 which is 7.7

So there is 7.7g of sugar in one cake.

Next multiply 7.7 by 5 which is 38.5

Therefore you need 38.5g of sugar for 5 cakes

Which equation has the same solution as x^2-x+11=8

Answers

Answer:

There are no real solutions to this equation.

Hope This Helps!

a line passes through the points 1 , -6 and 4,3 what is the Y intercept of this line ​

Answers

Answer:

y-intercept = -13

Step-by-step explanation:

So you have to put it in slope-intercept form to solve.

slope is 4 so you plug in the one of the coordinate points in for x and y in the equation to find b.

Y= 13 I think the answer .

another sequence is defined by a term to term sequence where k and r are constants
SEE IMAGE BELOW

Answers

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[tex]U(n + 1) = kU(n) + r[/tex]

_________________________________

[tex]n = 1[/tex]

[tex]U(1 + 1) = kU(1) + r[/tex]

[tex]U(2) = k \times U(1) + r[/tex]

[tex]188 = k \times (37) + r[/tex]

[tex]37k + r = 188 \: \: \: (( \alpha ))[/tex]_________________________________

[tex]n = 2[/tex]

[tex]U(2 + 1) = kU(2) + r[/tex]

[tex]U(3) = k \times U(2) + r[/tex]

[tex]943 = k \times (188) + r[/tex]

[tex]188k + r = 943 \: \: \: (( \beta ))[/tex]

_________________________________

[tex]188k + r = 943 \: \: \: (( \beta ))[/tex]

[tex]37k + r = 188 \: \: \: \: \: (( \alpha ))[/tex]

[tex](( \beta )) - (( \alpha )) = [/tex]

[tex]188k - 37k + r - r = 943 - 188 \\ [/tex]

[tex]151k = 755[/tex]

Divide sides by 151

[tex] \frac{151k}{151} = \frac{755}{151} \\ [/tex]

[tex]k = 5[/tex]

Put the value of k in one of the equations to find the r :

[tex]37k + r = 188[/tex]

[tex]37 \times (5) + r = 188[/tex]

[tex]185 + r = 188[/tex]

[tex]r + 185 = 188[/tex]

Subtract sides 185

[tex]r + 185 - 185 = 188 - 185[/tex]

[tex]r = 3[/tex]

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A 24 lb. bag of dog food sells for $10.56. What is the unit price per pound?

a
$0.53/lb
b
$13.44/lb
c
$0.44/lb
d
$34.56/lb


IN THE MIDDLE OF A ! HOUR TEST PLS HELP MEH

Answers

Answer:

12324236

Step-by-step explanation:

sh no m

Answer:

the answer is 0.44

Step-by-step explanation:

divided 10.56 by 24

ANAWER ASAP NEED HELP ASAP!!!!!!

Answers

Answer:

1/3

Step-by-step explanation:

I wanna play kahoot!! You didn’t invite me :(

What is 3 1/4 I don’t know what I am supposed to do can some one help me please think you

Answers

Answer:

uh i don't really get the question you asked, but if it's asking for the improper fraction of 3 1/4, it's 13/4.

Step-by-step explanation:

Change to a proper fraction
19/5 (Explain how to do it please) 31 points for it and if you don’t explain correctly I’ll report the question.

Answers

Answer:

3 4/5

Step-by-step explanation:

19/5 is improper because the numerator is larger to the denominator. If we round 19 down to 15 and divide 15 by 5 we get 3 but we still have 4 left because of how we rounded it. Let me explain this a little bit smaller.

19 fits into five three times, and that leaves 4 left over,  19/5 = 3 & 4/5

( i just added the & sign so it didn't look like 34/5 )

Write the equation of the line that goes through the point (1,3) & is
PARALLEL to the line y=2x+8 *

Answers

Answer:

y = 2x + 1

Step-by-step explanation:

Let the equation of the line be y = mx + c

since it is parallel to y = 2x + 8, their slope/gradient is the same (aka m = 2)

sub (1, 3):

3 = 2(1) + c

c = 1

therefore, the equation is y = 2x + 1

This is a question on coordinate geometry. If you wish to venture further into it/understand this topic better, you may want to follow my Instagram account (learntionary), where I post some of my own notes on certain topics and also some tips that may be useful to you :)

6x - 3 = 3( 2x - 1 ) what is the answer need it fast please and thank you

Answers

Answer:

Any number for x will work

Step-by-step explanation:

6x-3=3(2x-1)

expand

6x-3=6x-3

add three to both sides

6x=6x

simplify

x=x

Therefore any number for x will work

Answer:

x=x

Step-by-step explanation:

6x-3=3(2x-1)

Used Distributive property to 3(2x-1)

6x-3=6x-3

Add 3 to both sides:

6x=6x

Divide 6 from both sides:

x=x

A quality control manager is inspecting four digital scales to see if they accurately reflect a weight of 0 ounces. The table shows the weight displayed on four empty scales.

Empty Scale Weight Displays
Scale 1
–1 ounce
Scale 2
–2 ounces
Scale 3
0 ounces
Scale 4
–1 ounce

What is the average error in the scale displays?
–4 ounces
–1 ounces
0 ounces
1 ounce
Mark this and return

Answers

Answer:

-1

Step-by-step explanation:

Answer:

-1

Step-by-step explanation:

on edge ;)

1. What must be added to -3/8 to get 5/16 ?​
pls need ANS. FAST

Answers

In other words 5/16 subtract -3/8
Make them big common denominator
5/16 + 6/16 = 11/16

Answer: 11/16

Step-by-step explanation:

-3/8 = -6/16

5/16 - (-6/16) = 11/16

You need to add -3/8 with 11/16 to get 5/16

Please help I can’t figure out the answer

Answers

Answer: A

Step-by-step explanation: so in goes up by 5 and out goes up by 1 which i think makes 5x and the first one is 0,9 so f(x)=5x+9

Solve the equation 3125x=−62 to find the value of x.

Answers

Answer:

x = 50

Step-by-step explanation:

if you meant 31/25x = -62

Answer:

-0.01984

Step-by-step explanation:

x=-62/3125

x=-0.01984

Jayda take 4 hours to deliver 156 newspapers. How many newspapers can Jayda deliver in one hour?

Answers

Answer:

Step-by-step explanation:

39

Answer:

39 is the answer you are looking for

Determine if the following graph is a function. Find the
domain and range of the following graph. Write your
answer in inequality form.

Answers

Answer:

Yes, it is a function.

The domain is (∞,∞) and the range is (∞,5].

Step-by-step explanation:

A function needs to pass the vertical line test: It can only have one x value and one y value at a time. You simply hold a  ruler to your screen and drag it from left to right (or vice versa) and see if the function touches the ruler once. If it touches once at any given point, it's a function!

The domain is (∞,∞) because there is a line on both ends- meaning it stretches infinitely. The range is (∞,5] since it goes down infinitely and stops at y = 5.

Which equation can you use to solve the following problem? Aaron has 186 photographs. Each page in his photo album holds 8 photographs. How many pages will his photographs completely fill in his photo album?

Answers

Answer:

24

Step-by-step explanation:

will mark brainiest if correct. Need answers ASAP plz!!!!!

Answers

“Angle ADC are congruent to angle BCD” and the statement is “given”

1 point
The cost for 8 tickets if $84. At this
rate, 15 tickets will cost a total of
O $105.50
O $150.00
O $150.50
O $157.00
$157.50

Answers

157.50!!!!!!!!!!!!!!!!!!!!!!!!!! Last oneee

Which angles are corresponding angles?

Answers

try A

Step-by-step explanation:

Answer:

[tex] \huge{ \boxed{ \bold{ \tt{ \angle \: UTQ \: and \: \angle \: RQO}}}}[/tex]

Step-by-step explanation:

✎ The easiest way to think of a corresponding angles is ' F - pattern ' . In our case , [tex] \angle[/tex] UTQ and ∠ RQO are corresponding angles as they makes F - Shape .

Hope I helped!

Have a wonderful time ! ツ

~TheAnimeGirl

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