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umka21 [38]
2 years ago
8

Two numbers, a and b, have a sum of 24. The

Mathematics
1 answer:
mina [271]2 years ago
7 0

Answer:

a= -12 and b=36

Step-by-step explanation:

a+b=24 and 3a+b

a-3a+b=24

-2a+b-b=24

-2a/-2=24/-2

a= -12

then substitute the value of a in a+b=24 to get the value of b

so let see -12+b=24

b=24+12

b=36

we can check it by the equation -2a+b-b=24

-2(-12)+36-36=24

24=24 so as you have seen the answer is correct

thanks!!!

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Jenny bought a pair of pants for $19.99 and two shirts for $7.50. If she gave the cashier 40 dollars how much change did she rec
VMariaS [17]

Answer:

Jenny will receive $12.51 in change.

Step-by-step explanation:

We need to find the total cost first.

19.99 + 7.50 = 27.49

We then subtract that from the 40 dollars she gave to get the amount of change she receives.

40.00 - 27.49 = 12.51.

She will receive $12.51 in change.

hope this helped!  

4 0
3 years ago
19. Find the slope of the line graphed below.
Furkat [3]

Answer:

I think it's 19/12

Step-by-step explanation:

the left point is 11,-6

the right point is -8,6

11+8=19

6+6=12

rise over run or y/x

19/12

I don't think it can be simplified if I'm wrong I'm really sorry :T

7 0
3 years ago
A 6 inch personal pizza has 650 calories, with 240 of those from fat. A 14 inch pizza is cut into 8 slices. Estimate the number
professor190 [17]

<u>Answer:</u>

<em>Number of calories in one slice of a 14 inch pizza is 189.825. </em>

<u>Step-by-step explanation:</u>

Given that 6 inch pizza has <em>650 calories. </em>

Therefore 1 inch pizza has \frac{650}{6} <em>calories. </em>

14 inch pizza will have  

\frac{650}{6} \times 14=216.67 \times 14=1516.66 \ calories

Given that the 14 inch pizza is divided into 8 slices.

Therefore each slice of the 14 inch pizza will have

<em>\frac {1516.66}{8} =189.825 calories</em>

8 0
3 years ago
<img src="https://tex.z-dn.net/?f=1%2F3%20%2812x%20-%2024%29%20%3D%2016" id="TexFormula1" title="1/3 (12x - 24) = 16" alt="1/3 (
coldgirl [10]
1/3(12x-24)=16

3/1[1/3(12x-24)=16]

12x-24=48
+24 +24
12x=72

12x/12=72/12

X=6
4 0
2 years ago
How long will it take a seal swimming at a speed of 8 mph to travel 52 miles?
Anna [14]

Answer:

6.5 hours

Step-by-step explanation:

52 divided by 6 = 6.5

6 0
3 years ago
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