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IRISSAK [1]
3 years ago
8

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

Mathematics
2 answers:
d1i1m1o1n [39]3 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]3 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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Simplify: 5 + p &gt; 3<br><br> A.p &lt; 8<br> B.p &gt; 8<br> C.p &lt; - 2<br> D.p &gt; - 2
lianna [129]

Answer:

D) p > -2

Step-by-step explanation:

5 + p > 3

5 + p - 5 > 3 - 5

p > -2

6 0
2 years ago
Read 2 more answers
One angle of an isosceles triangle is 80º. What are the other two angles?
eimsori [14]

Answer:

80 and 20

Step-by-step explanation:

80+80+20=180

4 0
3 years ago
If x is directly proportional to y and x=3.4 when y=2 find y when x=5.1
dlinn [17]
The Answer is b. Hope that helps
5 0
3 years ago
Julia writes 2fractions with the same denominator that have numerators 5and 7.What could the denominator be if the sum is less t
Goshia [24]

Answer:

Less then denominator can be 20. I don't know equal. Greater denominator can just be 1.



8 0
3 years ago
In a survey of 300 house wires. It was discovered
ruslelena [56]

Answer:

46 housewives read all three magazines.

Step-by-step explanation:

Given:

        n(A) = 150

        n(B) = 200

        n(C) = 156

        n(A∩B) = 48

        n(B∩C) = 60

        n(A∩C) = 52

         n(A∪B∪C) = 300

so we know the relation as:

  n(A∪B∪C) = n(A) + n(B) + n(C) - n(A∩B) - n(B∩C) - n(A∩C) + n(A∩B∩C)

∴ n(A∩B∩C) = n(A) + n(B) + n(C) - n(A∩B) - n(B∩C) - n(A∩C)  - n(A∪B∪C)

                    = 150 + 200+ 156 - 48 - 60 - 52 - 300

                   = 46

Hence the number of housewives that had read all three magazine is 46.

8 0
3 years ago
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