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Oksana_A [137]
4 years ago
6

Mary got 85% correct on her math test. Mary missed 6 questions. How many total questions were on her math final?

Mathematics
2 answers:
ipn [44]4 years ago
6 0
Mary had 40 questions on the test.
Solnce55 [7]4 years ago
5 0

Answer: there were 40 questions on her math final.

Step-by-step explanation:

Let x represent the total number of questions in the math test.

Mary got 85% correct on her math test. This means that the number of questions that she got right is

85/100 × x = 0.85 × x = 0.85x

This also means that the number of questions that she missed would be

x - 0.85x = 0.15x

Therefore, if Mary missed 6 questions, it means that

0.15x = 6

Dividing both sides of the equation by 0.15, it becomes

0.15x/0.15 = 6/0.15

x = 40

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A rectangular pyramid has a base with dimensions 5 inches by 7 inches. The height of the pyramid is unknown. If the volume of th
Ksenya-84 [330]

Answer:

The height of the pyramid is 9\ in

Step-by-step explanation:

we know that

The volume of the rectangular pyramid is equal to

V=\frac{1}{3}BH

where

B is the area of the rectangular base of the pyramid

H is the height of the pyramid

<u>Find the area of the base B</u>

B=5*7=35\ in^{2}

we have

V=105\ in^{3}

substitute the value of B and the value of V in the formula and solve for H

105=\frac{1}{3}(35)H

315=(35)H

H=315/35=9\ in

4 0
3 years ago
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Can someone please help me !!
saw5 [17]
Since a straight line is 180 degrees, if you subtract 180-48 you get 132. Divide this by 2 and get X= 66. Because all angle of a triangle add up to 180, subtract the 90 from the right angle and 66 from x from 180. 180-66-90= 24. This means z=24
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4 years ago
Could someone help me out?
lapo4ka [179]

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15

Step-by-step explanation:

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3 years ago
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Identify each sequence as arithmetic, geometric, or neither. Then find the next two terms. 2,1,0.5,0.25, . . . . . .
tresset_1 [31]

It is a geometric sequence. The next two terms are: 0.125, 0.0625

The given sequence is:

2, 1, 0.5, 0.25, . . . .

Let a(n) be the nth term, then in the above sequence

a(1) = 2

a(2) = 1

a(3) = 0.5

a(4) = 0.25

Notice that:

a(2) = a(1) x 0.5

a(3) = a(2) x 0.5

a(4) = a(3) x 0.5

A sequence, of which its next term is obtained by multiplying the previous term by a constant is called a geometric sequence. The constant is called the ratio.

Therefore this is a geometric sequence with r = 0.5

To find the next two terms, continue the multiplication process:

a(5) = a(4) x 0.5 = 0.25 x 0.5 = 0.125

a(6) = a(5) x 0.5 = 0.125 x 0.5 = 0.0625

Learn more about sequences here:

brainly.com/question/24989563

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7 0
1 year ago
A t-shirt at the mall has an original price of $35. If it is on sale for 30% off, how much money will you save?
EastWind [94]

Answer:

$10.5

Step-by-step explanation:

 30/100 X 35

= 1050/100

= 10.5

8 0
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