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SSSSS [86.1K]
3 years ago
12

Factor the expression: -3r - 15

Mathematics
2 answers:
PIT_PIT [208]3 years ago
7 0

Answer: the answer for this is  -3 ( r + 5 )

Step-by-step explanation:

-3r - 15

3r -  3 * 5

-3 ( r + 5 )

iren2701 [21]3 years ago
5 0

Answer:

-3(r+5)

Step-by-step explanation:

............

.

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Work out<br><br> 1/3 + 2/9<br><br> Give your answer in its simplest form
Soloha48 [4]

Step-by-step explanation:

1/3 + 2/9 = 3/9 + 2/9 = 5/9

Topic: Fractions

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3 years ago
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Two consecutive integers have a sum of 513. find the smaller of these two number
nexus9112 [7]
513/2=256.5
which means 256 and 257 are the answers
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A game room has a floor that is 125 feet by 30 feet. A scale drawing of the floor on grid paper uses a scale of 3 units:5 feet.
crimeas [40]
It would be 75 units in length and 18 units in width.
7 0
3 years ago
A is the smallest two digit whole number; "b" is the sum of prime numbers up to 10. what is a b?
Natasha2012 [34]
Whole numbers are like 0,1,2,3,4,5...
the smallest one is 10

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if you do think it's a prime number, go to BBBBBBB

AAAAAAA
2,3,5,7
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BBBBBBBBBBB
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5 0
3 years ago
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tyra has 12 2/3 cups of sugar. if r is the amount of sugar needed for one batch of cookies, the expression 12 2/3 ÷ r can be use
olga nikolaevna [1]

ANSWER

She can make 19 batches of oatmeal.

EXPLANATION

First we can change the mixed number into an improper fraction:

12\frac{2}{3}=12+\frac{2}{3}=\frac{12\cdot3}{3}+\frac{2}{3}=\frac{36}{3}+\frac{2}{3}=\frac{38}{3}

In this problem, r = 2/3. The division is:

12\frac{2}{3}\div r=\frac{38}{3}\div\frac{2}{3}

Using the KFC rule:

\frac{38}{3}\div\frac{2}{3}=\frac{38}{3}\times\frac{3}{2}

Solving we can see that the denominator of the first fraction can be simpliied with the numerator of the second fraction:

\frac{38}{3}\times\frac{3}{2}=\frac{38}{1}\times\frac{1}{2}=\frac{38}{2}=19

Tyra can make 19 batches of oatmeal with 12 2/3 cups of sugar.

6 0
1 year ago
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