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DedPeter [7]
3 years ago
10

What is the expression

Mathematics
1 answer:
timofeeve [1]3 years ago
7 0
-9r^2-2r+r^2+r=(-9r^2+r^2)+(-2r+r)=-8r^2-r\to B.
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Graph -9x + 6y = 18.
artcher [175]

Answer:

the graph is correct. the equation would be y=3/2x+3

Step-by-step explanation:

3 0
3 years ago
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Ten times the sum of half a number and 6 is 8
Delvig [45]

Im sorry but I don't really get the question, can you please explain it a little better?


4 0
3 years ago
One week a business sold 40 shirts. White ones cost $4.95, and the printed ones cost 7.95. In al $282 worth of shirts were sold.
Tanya [424]

Answer:

12 white 28 printed

Step-by-step explanation:

x = white y = printed

x + y = 40————(1)

4.95x + 7.95y = 282————(2)

Solve for x using 1st equation

x = 40 - y Plug in for x using 2nd equation

4.95(40 - y) + 7.95y = 282 Solve for y

198 - 4.95y + 7.95y = 282

3y = 84

y = 28         Plug in for y using 1st equation

x + (28) = 40     Solve for x

x = 12

I hope this helped and please mark me as brainliest!

8 0
2 years ago
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A table showing Pounds, Price per Pound, and Total Cost. The first row shows Cranberries, with the entries 1, 4, and 1 times 4.
Alex Ar [27]

Answer:

4.80

Step-by-step explanation:

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2 years ago
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Nick and eddie are both thinking of a number. Eddies number is 3/7 of nicks number. There is a difference of 52 between their tw
joja [24]

Answer:

nick's number = 91

eddie's number = 39

Step-by-step explanation:

n = nick's number

\frac{3}{7}n = eddie's number

\frac{7}{7}n - \frac{3}{7}n = 52

\frac{4}{7}n = 52

cross-multiply:  4n = 52(7)

                         4n = 364

                          n = 364/4 = 91

eddie's number:  \frac{3}{7} · 91 =  273/7 = 39

3 0
3 years ago
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