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Alenkasestr [34]
3 years ago
7

- Which set of numbers contains only

Mathematics
2 answers:
Natali [406]3 years ago
8 0
E is correct
A is wrong because 1 isn’t a prime number
B and C is wrong because 0 isn’t
D is wrong because 9 isn’t prime
Ainat [17]3 years ago
5 0

Answer:

E. 2x1, 7x1, 13x1, 19x1

Step-by-step explanation:

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3 years ago
Drag the tiles to the correct boxes to complete the pairs. Match each word problem to its solution. Seven more than 3 times a nu
Luba_88 [7]

Answer: (A) The number is 14

(B) Lily is 16 years old

(C)The number is 35

(D) The wallet cost $20

Step-by-step explanation: (A) Let the number be a. Three times the number is equal to 3 times a, or 3a. Seven more than 3a equals 49, that means

7 + 3a = 49

Subtract 7 from both sides of the equation

3a = 42

Divide both sides of the equation by 3

a = 14

The number is 14

(B) Let Hillary's age be h and Lily's age be l, so if Hillary's age is 3 years greater than Lily's age, then we have

h = 3 + l

Then if Hillary's age is now given as 19, the equation becomes

19 = 3 + l

Subtract 3 from both sides of the equation

16 = l

Lily's age is 16

(C) Let the number be x, and so twice the number becomes 2 times x which is 2x. Twice the number decreased by 20 is 50, becomes

2x - 20 = 50

Add 20 to both sides of the equation

2x = 70

Divide both sides of the equation by 2

x = 35

The number is 35

(D) Let each handbag be represented by b and each wallet be represented by w. The cost of each handbag is 10 more than the wallet, so if the wallet cost w, then the handbag would cost w + 10. This can be expressed as

h = w + 10

If she spent a total of 60 for the 2 handbags, then each handbag would cost 60 ÷ 2 which equals 30 per handbag. Substituting for the known value we now have,

30 = w + 10

Subtract 10 from both sides of the equation

20 = w

The cost of a wallet is $20

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3 years ago
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Answer:  1.5..?

Step-by-step explanation:

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3 years ago
Need help fast!! Please help
Luden [163]

Answer:

I am pretty sure it is 10.5

Step-by-step explanation:

4 0
2 years ago
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A monk crossbred​ plants, which can have purple or white​ flowers, and obtained 539539 plants with white flowers and 373373 plan
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