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Tju [1.3M]
2 years ago
13

Write a system of equations to describe the situation below, solve using substitution, and fill in the

Mathematics
1 answer:
Oksi-84 [34.3K]2 years ago
5 0

Answer:

R=5

Step-by-step explanation:

3r+21

2r+26

3r+21=2r+26

r=5

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HELP ME PLEASE! Vector's map has the scaling missing.he knows from the lake to the youth center is 8 miles. on the map, they are
Naddik [55]
Hey there!

Since 2 goes into 8, you would simplify. You would get 1 inch and 4 miles. Next, set up a ratio. The ratio is 1 inch: 4 miles. So for every inch on the map, there is 4 miles.

I hope this helps!
7 0
3 years ago
a pile of sand has a weight of 90kg The sand is put into a small bag, a medium bag and a large bag in the ratio of 2 : 3 : 7 Wor
just olya [345]
Hi there!

To split 90 kilos in the ratio of 2 : 3 : 7 we must first realise that we have a total of 2 + 3 + 7 = 12 parts, in which we must split the total 90 kilos.

12 parts equal 90 kilo, and therefore
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1 part equals 90 / 12 = 7.5 kilos, and therefore
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1 part equals 90 / 12 = 7.5 kilos, and therefore
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3 0
3 years ago
A gym owner has some purple weights and some white weights. The purple weights are 10 kilograms each, and the white weights are
snow_lady [41]

Answer: 3,9

Step-by-step explanation:

Given

A gym owner has purple and white weights that measure 10 kg and 6 kg each

respectively.

They weigh 84 kg in total

suppose there x purple and y white weights

\therefore x+y=12\quad \ldots(i)\\\Rightarrow 10x+6y=84\quad \ldots(ii)\\\\\text{Solving }(i)\ \text{and }(ii)\\\\

x=3,\ y=9

Thus, there are 3 purple and 9 white weights.

8 0
2 years ago
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STatiana [176]
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3 years ago
The cup was filled at a
MAXImum [283]

Answer:

0.2986  (29.86%)

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the percent of the cup that is filled 105/351.68 = 0.2986  (29.86%)

4 0
3 years ago
Read 2 more answers
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