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algol [13]
3 years ago
12

Help me solve for the variable -12r + 4 = 100 r=

Mathematics
1 answer:
torisob [31]3 years ago
7 0

Answer:

-8

Step-by-step explanation:

-12r+4=100

100-4=96

-12r=96

96/-12=-8

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The shapes in this question are drawn on a centimetre grid.
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Answer:

A. 12 centimeters B. 4 centimeters C. 20 centimeters

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4 0
3 years ago
4 more than the difference of 12 and a number j
Bezzdna [24]

The algebraic expression for the mathematical statement given as 4 more than the difference of 12 and a number j is 4 + 12 - j

<h3>How to determine the arithmetic expression?</h3>

The mathematical statement is given as:

4 more than the difference of 12 and a number j

4 more than means 4 +.

So, we have:

4 + the difference of 12 and a number j

the difference of 12 and a number j means 12 - j

So, we have

4 + 12 - j

Hence, the algebraic expression for the mathematical statement given as 4 more than the difference of 12 and a number j is 4 + 12 - j

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7 0
2 years ago
Lena and three of her friends bought just enough food so they could go for a 12-day camping trip. Pete and Jane surprised them b
blagie [28]

Answer:

  33.3%

Step-by-step explanation:

The number of people that must be fed has increased from 4 to 6, so is 6/4 = 3/2 as many as planned.

Assuming the additional people eat the food at the same rate as the original people, the time and number of people are assumed to be inversely proportional. That is, the time the food will last is 2/3 of the originally expected time. It has decreased by 1/3 × 100% = 33.3%.

___

If you like, you can count rations. For four people for 12 days, at 3 rations per person per day, a total of 144 rations are needed. When the number of people becomes 6, the number of days that will last is ,,,

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The percentage change in trip days is ...

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3 0
3 years ago
Need help i don’t understand!
GarryVolchara [31]

When solving for a coefficient the variable to look for is 1

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