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natulia [17]
3 years ago
10

The valué of the digital 8 in this 80 the valué of the digit 7 in this number is not 7

Mathematics
1 answer:
mario62 [17]3 years ago
7 0
Answer:
70.
Step by step explanation:
8 in 80 is multiplied by ten. 7 multiplied by 10 is 70
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In the ratio 3:7 Zoe received £24 how much did Hannah receive last week
Ludmilka [50]
<span>ratio 3:7

Zoe received £24 (3 x 8 = 24)

</span>Hannah 7 x 8 = £56
3 0
3 years ago
What are the coordinates of P' if P (-5,-4) undergoes a dilation, centered at the origin, with a scale factor of K=2?
Margaret [11]

Answer:

P' = (-10,-8)

Step-by-step explanation:

Given

P = (-5,-4)

k =2

Required

Determine the image P'

P' is calculated by multiplying P and k.

i.e.

P' = P * k

This gives:

P' = (-5,-4) * 2

P' = (-5* 2,-4* 2)

P' = (-10,-8)

<em>Hence, the image P' after dilating P is (-10,-8)</em>

7 0
2 years ago
The sum of the squares of two consecutive integers is 145. Find the two integers.
worty [1.4K]

Answer: The two integers are 8 and 9.

Step-by-step explanation: Let n represent the number.

n^2 + (n + 1)^2 = 145

By foiling, this can be rearranged to:

n^2 + n^2 + 2n + 1 = 145

Subtract 145 from both sides:

2n^2 + 2n - 144 = 0

Divide both sides by 2:

n^2 + n - 72 = 0

Factor the polynomial:

(n + 9)(n - 8) = 0

Solve for n:

n = -9, n = 8

Since they need to be consecutive, make the 9 positive. It will be positive either way because it is being squared.

Now, n = 9 and n = 8.

These are your two integers. Hope this helps!

6 0
3 years ago
3(x + 2) = 18 please help
Iteru [2.4K]

Answer:

3(x+2)= 3*x + 3*2

3x * 6 = 18

Step-by-step explanation:

its easy

3 0
3 years ago
Read 2 more answers
I NEED HELP
Nana76 [90]
A. 125 is the answer to your question
5 0
2 years ago
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