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Mars2501 [29]
3 years ago
14

In a 20 item true-false examination, if 12 correct answers constitute a passing grade,

Mathematics
1 answer:
harina [27]3 years ago
4 0

Answer:

The answer is B, I know this because I just took a test with this question lol

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If the Volume of a box is 250 feet3 and the height is 5 feet and the length is 5
Montano1993 [528]

Answer:

10 feet

Step-by-step explanation:

Use the volume formula, V = lwh, to solve for w

Plug in the values we know:

V = lwh

250 = (5)(w)(5)

250 = 25w

10 = w

So, the width is 10 feet

7 0
3 years ago
Based on the data in the table below what is the probability that a given accident involved a driver between the ages of 35 and
Lyrx [107]

Answer:

17.8 D

Step-by-step explanation:

3 0
3 years ago
Read 2 more answers
2 water taps A B fill a tank in 12 hrs. Tap A takes 10 hrs less than tap B to till tank separately. Find time taken by tap B to
Hatshy [7]

Answer:

11 hours

Step-by-step explanation:

Setting up a system of equations and using the substitution method will give you the number of hours used by each tap.  Let a = time for tap A and b = time for tap B:

a + b = 12  (A and B fill a tank in 12 hours)

a = b - 10 (tap A takes 10 hours less than tap B)

Substitute 'b - 10' for 'a' in the first equation:

b - 10 + b = 12

Combine like terms: 2b - 10 = 12

Add 10 to both sides: 2b - 10 + 10 = 12 + 10 or 2b = 22

Divide by 2: 2b/2 = 22/2

Solve for b: b = 11 hours

5 0
3 years ago
Select the correct answer. Simplify the expression below. 4x(3x − 7) − 19x2 A. -7x2 − 7 B. -35x2 C. -7x2 − 28x D. -31x2 − 28x
morpeh [17]

Answer:

C. -7x^2-28x

Step-by-step explanation:

The given expression is 4x(3x-7)-19x^2

We apply the distributive property to expand the parenthesis

12x^2-28x-19x^2

Regroup similar terms to get:

12x^2-19x^2-28x

Combine the similar terms to obtain:

-7x^2-28x

The correct option is C.

5 0
3 years ago
Twice a number (x) is less than 14.<br> Inequality:<br> The solution to the inequality is:
Roman55 [17]

Answer:

2x<14

Step-by-step explanation:

let that number be x. twice a number means, 2×that number.and now we are supposing that number is x. so 2×X =2x

and less than means <

so the expression becomes

2x<14.

8 0
3 years ago
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