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slava [35]
4 years ago
13

Which expression is equivalent to 5x + 7y?

Mathematics
1 answer:
Reptile [31]4 years ago
3 0

Answer:

that would be "b"

Step-by-step explanation:

The commutative property says that a + b = b + a so the correct answer is 7y +5x.

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What is the reflection of image p(0,0) after two reflections first across x=-3 and
pochemuha
<span>P (0, 0) across x = -3 will change the x value. From 0 to -3 which is 3 units down, so the reflection will be another 3 units down ( points are the same distance from the reflection line) so the new x-value is -6 now just do the same thing for the y-value and you will get an image of P¹ ( -6, -6 ) </span>
4 0
3 years ago
I have 54 coins in my pocket; some of them are quarters and the rest are nickels. In total, the coins are worth $6.10. How many
ss7ja [257]

Answer:

17 quarters, 37 nickels

Step-by-step explanation:

We just have to set up a system of equations

quarters are x

and nickels are y

x+y=54

0.25x+0.05y=6.10

now we can get ready to substitute

x=54-y

substitute it in

0.25(54-y)+0.05y=6.10

simplify/evaluate

13.5-0.25y+0.05y=6.10

-0.2y=-7.4

y=37

plug it back in

x+37=54

x=17

3 0
3 years ago
The formula is m=4a+2c, where c= number of children; m= number of meatballs; a = number of adults. How many meatballs are requir
lorasvet [3.4K]
M=(4x25)+(2x6)
=100+12
m=112
8 0
4 years ago
Write an equation in slope intercept form of the line with a slope of -3/4 and y intercept of -5
raketka [301]
Given,
slope(m)=-3/4
y intercept (c)=-5
Then,
equation in slope intercept form is
y=mx+c
or, y=(-3/4)×x+(-5)
or, y=-3/4×x-5

5 0
4 years ago
A table is on sale for $179.20, which is 72% less than the regular price. What is the regular price?​
Marianna [84]

Answer:

640

Step-by-step explanation:

price ÷ 1 - percent (as decimal)

179.20÷(1-0.72) = 640

8 0
3 years ago
Read 2 more answers
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