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3 years ago

What she scored on her second test

Mathematics

1 answer:

hjlf3 years ago

3 0

Let's say that Maria had 270 as a total score, which is true.
The problem is asking for an addition problem to help determine the second score Maria might have gotten.

In order to solve this, you need an equation.
Knowing the rules of addition and subtraction, you put 92 and 88 together, and get a sum of 180.

92 + 88 is your addition problem in this question

Now, in order to find the difference, or the second score, you need to subtract.

All you need to do is do a simple equation
↓↓ ↓↓
270 (total of all scores including the second one) - 180 (the sum of the addition equation) = 90

Your answer is 90.

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What property of equality is 43n = -43

Mumz [18]

Answer:

n=-1

Step-by-step explanation:

43/-43=-1

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3 years ago

The residents of a city voted on whether to raise property taxes. The ratio of yes votes to no votes was 7 to 5 . If there were

Nitella [24]

Answer: 6456

Step-by-step explanation:

Ratio of yes to no= 7:5

Number if yes= 3766

Since total number of yes is 3766. To find the total number of votes, 3766 / (7/7+5)

= 3766/ (7/12)

= 3766 × 12/7

= 45192/7

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5 0

3 years ago

1.the ratio if the weight of an object on mars to its weight in earth is 9 to 25.If a person weighs 120pouns on earth,how much w

Ilya [14]

Question #1
$\frac{9}{25}=\frac{x}{120}\\\\120(9) = 25x\\\\1080 = 25x\\\\x= 43.2$

For #1, the answer is 43.2

Question #2
$\frac{6}{5} = \frac{2580}{x} \\\\2580(5) = 6x\\\\12900 = 6x\\\\x = 2150$

For #2, the answer is 2150

8 0

2 years ago

which of the following properties could be used to rewrite the expression (2/3•1/5)•5/2 as 2/3•(5/2•(5/2•1/5) sorry to ask Su ma

slamgirl [31]

The original expression is given by:
$( \frac{2}{3}*\frac{1}{5})*\frac{5}{2}$
The correct way to rewrite the expression is given by:
$\frac{2}{3}*(\frac{5}{2}*\frac{1}{5})
$
For this, we use two properties:

Associative property:
The way of grouping the factors does not change the result of the multiplication:
$\frac{2}{3}*(\frac{1}{5}*\frac{5}{2})$

Commutative property:
The order of the factors does not vary the product:
$\frac{2}{3}*(\frac{5}{2}*\frac{1}{5})$

8 0

3 years ago