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shusha [124]
3 years ago
14

Tim answered all queston on is math test but got 10 answers wrong. He received 4 points for every corect answer, and there was n

o penalty for wrong answers. His score was 76 points Write an equation to determine the total number of question (q) on Tim math test. Find the total number of question on his math test
Mathematics
1 answer:
Eduardwww [97]3 years ago
6 0

Answer:

See below in Bold.

Step-by-step explanation:

If he scored 76 points he must have answered 76/4 = 19 questions correctly.

If the total number of questions is q then our equation is q = 10 + 76/4

= 10 + 19 = 29 questions.

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Answer:

You can solve this by substitution method

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7 0
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If jack has 336473894875785686598685965867$ and spends 67843993$ how much money does he have left?
sergiy2304 [10]
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3 years ago
Solve S=2πrh+πr2 for h
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3 years ago
A family has three children.The oldest is 4 years older than the middle,and the youngest child is 2 years younger than the middl
lesantik [10]

Answer:

The age of the youngest child = x = 6 years

The age of middle child = y = 8 years

The age of the oldest child = z = 12 years

Step-by-step explanation:

Let us represent:

The age of the youngest child = x

The age of middle child = y

The age of the oldest child = z

The sum of the ages of the children is 26.

Hence: x + y + z = 26...... Equation 1

The oldest is 4 years older than the middle

z = 4 + y

The youngest child is 2 years younger than the middle child

x = y - 2

Hence, we substitute 4 + y for z and y - 2 for x in Equation 1

x + y + z = 26...... Equation 1

y - 2 + y + 4 + y = 26

y + y + y -2 +4 = 26

3y + 2 = 26

Subtract 2 from both sides

3y + 2 - 2 = 26 - 2

3y = 26 - 2

3y = 24

y = 24/3

y = 8

Solving for x

x = y - 2

x = 8 - 2

x = 6

Solving for z

z = 4 + y

z = 4 + 8

z = 12

Therefore:

The age of the youngest child = x = 6 years

The age of middle child = y = 8 years

The age of the oldest child = z = 12 years

7 0
3 years ago
A. <br> B. <br> C. <br> D. please help
Dmitriy789 [7]

Answer:

D

Step-by-step explanation:

-1 + -5 is -6.

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3 years ago
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