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IRISSAK [1]
4 years ago
8

5(x+7)+2(y-1)when x=7 and y=2

Mathematics
2 answers:
d1i1m1o1n [39]4 years ago
8 0

Answer:72

Step-by-step explanation:5(7+7)+2(2-1)

brackets first=7+7=14

2-1=1

5(14)+2(1)

times the brackets by the numbers on the outside

5x14=70

2x1=2

add the too together

70+2=72

balu736 [363]4 years ago
5 0

Answer: 72

Step-by-step explanation:

First plug in 7 for x

5(14)

Then multiply

70

Next plug 2 in for y

2(1)

Multiply

2

Lastly, add 70 and 2 together.

72.

Hope this helps.

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pickupchik [31]
Jo makes 170 minutes call. There are 150 free ones
170 - 150 = 20
20 minutes are "what Jo has to pay"
Jo sends 182 texts. There are 150 free ones
182 - 150 = 32
32 texts are "what Jo has to pay"

Monthly charge = 16p, 13p for each extra minute, 15p for each extra text.
13(20) = 260p
15(32) = 480p

480p + 260p + 16 = 740p + 16

740p + 16 is your answer (if p = pounds, add 16 to it, i'm not sure what p                                                  stands for though. If it is cents, divide 100 from                                                740 and take out the p, then add total to 16 to get                                            answer.)

hope this helps
4 0
3 years ago
Explain why the sawtooth function, sawtooth(x) = x − ⌊x⌋ for all real numbers x, takes only the fractional part of
kifflom [539]

Answer:idk

Step-by-step explanation:

4 0
4 years ago
I need the answer and how to do it
irga5000 [103]
You turn 1/3 into 2/6. Because you need the bottom number to match. 3x2=6 then you do the same to the top. 1x2=2. So your answer would be 4/6 but reduced it would be 2/3
3 0
3 years ago
BRAINLIEST!! HELP!!!
polet [3.4K]

Answer:

Step-by-step explanation:

Volume v = 1/3(l×b)h

l = 29m, b = 24m, h = 20m

V = ⅓ ×(29×24)20

V = 29 × 8 × 20

V = 4640m³

8 0
3 years ago
Read 2 more answers
I need help explaining and answering!! Anybody help.Thanks
tester [92]
The answer to this is Jon because the formula for finding the hypotenuse is a^2+b^2=c^2.
4 0
3 years ago
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