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3 years ago

You earn a 90% on his science test you answer 18 questions correctly how many questions were on the test

Mathematics

2 answers:

Bogdan [553]3 years ago

8 0

Hello there!

The correct answer is 20.

Hope This Helps You!
Good Luck :)

gogolik [260]3 years ago

5 0

We can write a ratio equation 90/100 =18/x to show how many problems he got right on his science test.

We can cross multiply to simplify our equation to 90x=1800.

Now we divide by 90 on both sides to get x=20.

There were 20 questions on the science test, if you answered 18 questions correct, your test score would be a 90%.

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Math Vocabulary - Match the word to its definition.

riadik2000 [5.3K]

Answer:

1. Exponents- e.is the number of times the BASE NUMBER is multiplied by itself.

2. Term- a.is a number by itself or the product of a number and variable (or more than one variable).

3. Variables- d.letters or symbols used in place of a quantity we do not know yet.

4. Coefficient- c.the number in front of a variable

5. Constant- b.is a number that stays fixed in an expression

Step-by-step explanation:

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2 years ago

Read 2 more answers

If 90 people were at a game and one-sixth bought programs for $1.50 each,

marta [7]

Answer:

I'm pretty sure they spent $22.50

Step-by-step explanation:

do (1÷6)×(90) then multiply 15 and 1.50

4 0

2 years ago

Create four equations using 9, 54 and 6 fact families

Contact [7]

9 * 6 = 54
6 * 9 = 54

These would be 2 of the 4 equations, because 6 times 9 equals 54 and 9 times 6 equals 54, but are written in a different way. Thus meaning they are 2 of the 4 equations.

54/6 = 9
54/9 = 6

These 2 would be the final to, because 54 divided by 6 is 9, and 54 divided by 9 is 6. Thus meaning they are the final 2 equations.

I hope this helps!

6 0

3 years ago

PLEASE HELP!!!! see attachment below… I bet you cant solve this:

d1i1m1o1n [39]

Answer:

Step-by-step explanation:

(-1) $^{i}$ (5!*5/4!) $^{1/2}$ = - $\sqrt{25}$

(-1) $^{i}$ (5!*5/4!) $^{1/2}$ = $\sqrt{25}$

So the sum of the first 100 terms is zero

3 0

2 years ago

A person died leaving property worth rs.4000.40. His widow get 0.125 of the property and his son got 0.4 of the remainder. What

belka [17]

Answer:

Widow's Share = Rs 500.05

Son's share = Rs 1400.14

Step-by-step explanation:

Property = 4000.40

Widow get share = 0.125

So, Share of Widow = 0.125 * 4000.40

Widow's Share = Rs 500.05

Remaining Property = 4000.40 - 500.05

Remaining Property = 3500.35

Son's share = 0.4 * 3500.35

Son's share = Rs 1400.14

6 0

3 years ago