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user100 [1]
3 years ago
7

On a math test, Sally got 30 out of 35 problems correct. What percent of the problems were incorrect?

Mathematics
1 answer:
DerKrebs [107]3 years ago
5 0

Answer:

5 incorrect

If she got 30 right, she got 5 wrong on her math test

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The height of a triangle is 4 m less than its base. the area of the triangle is 48m^2 what is thr length of the base
romanna [79]
Base = x
height = x-4
Area = .5 * height * base
48 = .5 * (x-4) * x
96 = x^2 -4x
x^2 -4x -96=0
x = 12
base = 12
height = 8





8 0
3 years ago
-7–5(3g+8)&lt;10g–7+g <br><br> help me please!
Ede4ka [16]

Answer:

-20/13 <g

Step-by-step explanation:

-7–5(3g+8)<10g–7+g

Distribute

-7–15g-40<10g–7+g

Combine like terms

-15g - 47 < 11g -7

Add 15 g to each side

-15g+15g -47< 11g+15g -7

-47 < 26g -7

Add 7 to each side

-47+7 < 26g-7+7

-40 < 26g

Divide each side by 26

-40/26 <26g/26

-40/26 <g

Divide top and bottom by 2

-20/13 <g

8 0
4 years ago
Directions: Read and analyze each problem carefully. Answer the questions accordingly and
Step2247 [10]

1) The larger number is 33.

2) Joan weighs 47.5 kg, and Annie weighs 44.5 kg.

3) Ronnie walks at a rate of 4 km/h, while Margie walks at a rate of 2 km/h.

4) It takes 3 hours for Lea to do the same task working alone.

5) Katie is 5 years old and Rico is 1 year old.

To solve each problem, the following calculations must be done:

1)

(54 - 12) / 2 = X

42 / 2 = X

21 = X

21 + 12 = 33

33 + 21 = 54

2)

(92 - 3) / 2 = X

89 / 2 = X

44.5 = X

44.5 + 3 = 47.5

44.5 + 47.5 = 92

3)

1000 / 3 x 2 = 666.666

0.666 x 6 = 3.999

0.333 x 6 = 1.999

4)

1/5 + 1/X = 1/2

10/5 + 10/X = 10/2

2 + X = 5

X = 5 - 2

X = 3

5)

5 /// 1

8 /// 4

Learn more about quantities in brainly.com/question/25826162

7 0
3 years ago
if you see this i really need help asap! ty, 'A man pushes a 10 kg box with a force of 5 N. How much will the box accelerate?'
Natalka [10]
F=ma, 1 N= 1kgm/s2

5kgm/s2=10kg•a
a= 1/2 m/s2
3 0
3 years ago
What is the volume of a cylinder with a radius of 5 centimeters and height of 2.5 centimeters?
IRISSAK [1]

Answer:

Step-by-step explanation:

The formula for volume of a cylinder is

V = πr²h    where r is the radius and h is the height.

We are given r = 5 and h = 2.5, plug those values in and simplify...

V = π(5²)(2.5)

       V = π(25)(2.5)

              V = 62.5π

7 0
4 years ago
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