Mathematics Middle School

8: Bob completed 80% of the 30 question test. How many questions does he have left to do? Write an equation or proportion and solve.

Please show work!!

Answers

Answer 1

Answer:

6

Step-by-step explanation:

Answer 2

Answer:

6÷

Step-by-step explanation:

30÷100=0.30

0.30×20=6

Related Questions

Hello! Can someone please help me with this?
Solve Equations for Unknown Angles

Answers

Step-by-step explanation:

For the first one for A, B, C its the explanation in the left corner

can you help me plssss

Answers

Step-by-step explanation:

57° + x + 23° = 180° { being linear pair }

80° + x = 180°

x = 180° - 80°

x = 100°

Hope it will help :)❤

Answer:

4.35

Step-by-step explanation:

180-57=123

123-23=100

100 ÷ 23=4.347826

rounded to 4.35

Helene spends 25% of her budget on transportation expenses. Enter this percent as a decimal and as a fraction in simplest form.


25% written as a decimal is
and written as a fraction is

Answers

decimal form is (.25)
and as a fraction it is (1/4)

$350, 33% mark up.
LAST QUESTION!!! BRAINLIEST AND 25 PTS

Answers

Answer:

350*33%= 115.5

350+115.5= $465.50

the Mark Up Price is $465.50

Step-by-step explanation:

Pls help. (Use answers below)

Answers

Answer:

let me try

Step-by-step explanation:

1) 38.13 in^2
2) 51 in^2
3) 286 cm^2
4) 90 m^2
5) 56 cm^2
6) 56.96 m^2
7) 185 ft^2
8) 142.5 in^2
9) 132 ft^2
10) 76.26 in^2
11) 175 m^2
12) 322 ft^2
13) 187.5 ft^2
14) 39 in^2
15) 100 in^2
16) 75.25 in^2

WILL GIVE BRAINLIEST YOU MUST EXPLAIN SO I CAN ANSWER OTHER QUESTIONS

Rewrite in simplest terms: (9x + 4y) - (9x + 5y)

Answers

Answer: -y

Explanation:
1. Distribute the negative to the second parentheses
2. Eliminate redundant parentheses
3. Combine like terms

1. (9x + 4y) - 9x - 5y
2. 9x + 4y - 9x - 5y
3. 4y - 5y
4. -y
You should get this answer if you combine like terms that’s why it differ from the one on top from this one
(9x+4y)-(9x+5y)
9x+4y-9x+5y
X+9y

Im almost done but I need help :)

Answers

Answer:





Explanation: D:
It’s D because if he do

Tyler’s brother works in a shoe store.

a. Tyler’s brother earns a commission. He makes 2.5% of the amount he sells. Last week, he sold $900 worth of shoes. How much was his commission?

b. The store bought a pair of shoes for $50, and sold it for $80. What percentage was the markup?

c. Tyler’s brother earns $12 per hour. The store offers him a raise—a 5% increase per hour. After the raise, how much will Tyler’s brother make per hour?

PLEASE EXPLAIN YOUR ANSWER (how you got it)

Answers

i believe it should be (c)?

I really need help with this:)

Answers

Answer:

I think it is b because dimension are measurable extent

Answer:

B

Step-by-step explanation:

The answer is B, because the second scale is half that of the first, so if you half the length and width you get 4.5 and 2.5

Sam's parents gave him a map to reach to
his house. He is 1.5 cm from his home. If
each 3 cm on scale drawing equals 5 km, how
far is he from the house?

Answers

2.5 km because 1.5 is half of 3 and half of 5 is 2.5
the answer is 2.5 km!!!!

You are buying shoes at Kohl's at a Back to School Sale. The shoes you are buying are $38.99 and you have a coupon for 50% off, using estimation and mental math, what would the cost of the shoes be after the coupon?

Answers

19.50 would be the answer
19.50 would be the answer

During a 5th grade field trip to the Museum, Ms. Jones bought 33 student tickets and one adult ticket for herself. Her ticket cost $3.00 more than a student ticket. She spent a total of $300.50.Enter, in dollars, the cost of a single student ticket

Answers

Answer: $ 9.02 I think (Might be wrong)

I believe it is 9.01

A statistics student records the servings of vegetables Natalia and Zane eat each weekday. The table shows the results.

Answers

Answer:

The Answer is D)

Step-by-step explanation:

Ten Points
Look at the rectangle and the square:

A rectangle PQRS and square LMNO are drawn side by side. The length SR of the rectangle is labeled as 12 inches, and the width QR is labeled as 6 inches. The side LM of the square is labeled as 6 inches
Sam says that the length of diagonal SQ is two times the length of diagonal OM.

Is Sam correct? Justify your answer and show all your work. Your work should state the theorem you used to find the lengths of the diagonals.

Answers

Answer:

False

Step-by-step explanation:

Let's consider the triangle SQR. We know it is right-angle because part of the rectangle PQRS. We can use the Pythagorean theorem:

[tex]SQ^{2} = RQ^{2} + SR^{2} \\SQ^{2} = 36 + 144 = 180\\SQ = \sqrt{180} = 13,4[/tex]

We can do the same for the square in which ON = 6 because it's a square:

[tex]OM^{2} = MN^{2} + ON^{2} \\OM^{2} = 36 + 36 = 72\\OM = \sqrt{72} = 8.5[/tex]

Now let's compare them:

8.5 X 2 = 17 so OM X 2 is not equal to SQ

The sentence is false.

PS : Sorry for the misspelling, I'm French =)

Find the area of a SEMI-CIRCLE With a diameter of 17in

Answers

Answer:

A≈226.98in²

Step-by-step explanation: Hope that this helps

A=226.98in. Squared

Are the ratios 3:6 and 6:3 equivalent? Why or why not?

Answers

Answer:
Yes!
Step-by-step explanation:
It is because your still getting the same number 3 because even though your multiplying and dividing it still works

Answer:

no

Step-by-step explanation:

3:6 is equal to 1/2 where 6:3 is equal to 2

1/2n + 1/2n + 1/2n = 7
what is the value of n? include a check to check your answer.

Answers

Answer:

N = 8/4

Step-by-step explanation:

Multiply all terms by n and cancel:

1/2+1/2+1/2=7N

8/7=7n (Simplify both sides of the equation)

7n=8/7/7

           -

           7

(Divide both sides by 7)

n= 8/49

Pls help meh Area of a Circle (rounded)
TROLL FOR POINTS= REPORT

FIRST AND CORRECT ANSWER= BRAINLIEST

( NO LINKS )

Answers

Answer:

28.27 or 28 for rounded

Step-by-step explanation:

Pi r^2  pi(3)^2

28.27 or it’s either 28 hope that helped

HURRY PLZ Stacy has a box that is a rectangular prism. The diagram below shows the box with dimensions labeled. What is the volume of Stacy's box?

Answers

Answer:

the volume is 64 cubed

Step-by-step explanation:

volume is length*width*hight

4*8=32

32*2=64

the answer is 64.
to find volume you do the length times the width times the height.
8*4*2=64

plz help its a benchmark

Answers

Answer:

2 is the answer

Step-by-step explanation:

35+14=49

49/7=7

7=(5+x)

x=2

Answer:

Step-by-step explanation:

7(5+x)=35+14

7(5+x)=49

5+x=7

x=2

HELP PLS AND EXPLAIN:
y= 4x + 7
2x + y = 7

A. one solution

B. no solution

C. infinitely many solutions

Answers

C.infinitely many solutions

1. An angle bisector of a triangle is also an altitude. Prove the triangle is isosceles.
2. A median of a triangle is also an altitude. Prove the triangle is isosceles.
3.Prove that corresponding altitudes in congruent triangles are congruent.
Use statement reason proof for these questions. Do not do random answer for points or i will report you

Answers

Answer:

Step-by-step explanation:

A circle with its dimensions, in meters (m), is shown.

What is the area, in square meters, of the circle? Use 3.14 for \piπ.

Round your answer to the nearest tenth.

Answers

Answer:

84.78

Step-by-step explanation:

also if you dont mind giving me brainliest im trying to rank up, im 1 away. only if u dont mind

Estimate: 5.56*32.958

Answers

Answer:

183

Step-by-step explanation:

5.56*32.958 = 183.24648, round to nearest whole number

if the volume of the solid below is 378 cubic inches, what is the height of the solid?​

Answers

Answer:

54

Step-by-step explanation:

8.89
When you round it to the nearest tenth it’ll be 9.

Find the value of x.

Answers

Answer:

x = 45

Step-by-step explanation:

45 + 45 = 90

90 + 90 = 180

180 degrees is a triangle

Plz mark as brainliest if correct! Have a nice day!!!

-Lil G

the answer would be 45

45+45= 90
90+90=180
and 180 is a triangle hope this helped

70% of the 80 students in the sixth grade are taking Spanish. How many students are taking Spanish? Pick the model that represents the problem.

Answers

56 students are taking spanish

gavusto was asked to generate several expressions that would be equivalent to the one below for each of his expressions determine whether they are in fact equivalent Mark yes or no. 6x + 9x - 18y​

Answers

Answer: true

Step-by-step explanation:go go go

honestly.. just use photomath

Please help me:) thanks

Answers

Answer:

B. Side a is 7 inches long and side b is 6 inches long.

Step-by-step explanation:

Since the scale drawing is three times bigger than the actual object, divide both numbers by three to find the object size.

Side a:

21/3 = 7 inches

Side b:

18/3 = 6 inches

B side a is 7 inches and side b is 6 inches long

One Step Inequalities pls help me
TROLL FOR POINTS= REPORT

CORRECT ANSWER= BRAINLIEST

( NO LINKS )

Answers

Answer:

x>-5

Step-by-step explanation:

If you solve out the equality like an equation you can get the answer

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