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MArishka [77]
3 years ago
7

Subtract 5r - 2 from -3r + 4

Mathematics
2 answers:
Len [333]3 years ago
6 0

Answer:

-8r+2

Step-by-step explanation:

-3r + 4 - 5r - 2

Combine like terms

-8r+2

Ivan3 years ago
6 0

Answer:

negative 0.86

Step-by-step explanation:

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Marco is making mosaic garden stones using red, yellow and blue tiles. He has 45 red tiles, 90 blue tiles and 75 yellow tiles. E
dsp73
Find the GCF of 45, 90, 75: which is 15

So he can make 15 stones total.

Divide each of the color numbers by 15 to get the number of tiles he uses in each stone
8 0
4 years ago
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Wendy's mother recorded how many donuts she has eaten over the past few months. Jelly-filled donuts 6 maple donuts 53 glazed don
coldgirl [10]

Answer:

P(\text{Powdered sugar donut})=\dfrac{1}{15} .

Step-by-step explanation:

It is given that Wendy's mother recorded how many donuts she has eaten over the past few months.

Jelly-filled donuts = 6

Maple donuts = 53  

Glazed donuts = 11  

Powdered sugar donuts = 5

Now,

Total number of donuts = 6 + 53 + 11 + 5 = 75

We need to find the experimental probability that the next donut Wendy eats will be a powdered sugar donut.

P(\text{Powdered sugar donut})=\dfrac{\text{Powdered sugar donuts}}{\text{Total number of donuts}}

P(\text{Powdered sugar donut})=\dfrac{5}{75}

P(\text{Powdered sugar donut})=\dfrac{1}{15}

Therefore, P(\text{Powdered sugar donut})=\dfrac{1}{15}.

3 0
3 years ago
Evaluate the expression <br> 5.4+ab, if a = 4 and b = 8
dsp73

Answer:

37.4

Step-by-step explanation:

a = 4 and b = 8

change the equation

5.4 + (4) (8)

use P.E.M.D.A.S. and multiply

4*8 = 32

add

5.4 + 32 = 37.4

7 0
3 years ago
A stone is a British unit of weight equivalent to 14 pounds. After losing 1 1/2 stone. Jim is now 85% of his original weight. Wh
evablogger [386]

Answer:

Jim's current weight = 119 pounds

Step-by-step explanation:

1 Stone = 14 pounds

1\frac{1}{2} stone = 1.5 stone

1.5 stone = 1.5 (14 pounds) = 21 pounds

Jim lost 21 pounds

Let X be Jim's Original Weight

Y be his present weight

As per given statement in the Question:

After losing 1.5 stones (21 pounds of weight) Jim now weighs Y

Present weight = original weight - 21

Y = X -21     <u>                                                    Equation 1</u>

Also Current Weight = 85 % (Original weight)

Y = 85 % (X) =\frac{85X}{100}

Y=\frac{85X}{100}

put in Equation 1

\frac{85X}{100} = X-21

85X = (X-21) 100

85 X = 100 X -2100

or

2100 = 100 X - 85X

2100 = 15X

or

15 X = 2100

X=\frac{2100}{15}

X= 140 pounds ( Original Weight)

Current Weight = Y = Original weight - 21 <u><em>(From Equation 1)</em></u>

Y = X -21

Y = 140 -21

Y = 119 pounds (Current Weight)

5 0
3 years ago
PLEASE HELP ME !!<br><br> i’ll mark brainliest if you’re correct
exis [7]

analyze problem

no need for distance formula

same x, only need to subtract y

3a-0=3a

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2 years ago
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