What number am i?7 times two digit number equals 4 times number with the digit reversed .the sum of the digits is 3.

Mathematics

1 answer:

love history [14]2 years ago

5 0

Answer:

Step-by-step explanation:

7 times 12 is 84. 4 times 21 is 84. The digits have a sum of 3.

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Find the mean of the data set: 9 4 7 3 10 9

almond37 [142]

To find the mean, add up at the numbers and divide by the number of numbers in the set (6)

9 + 4 + 7 + 3 + 10 + 9 =
9 + 11 + 12 + 10
20 + 22
42

42 / 6 = 7

the mean is 7.

6 0

3 years ago

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6. If n (E) = 40, n (A) = 22, n (ANB) = 8 and n ((AUB)') = 6, determine n(B)

Dimas [21]

Answer:

Step-by-step explanation:

First n(AUB)=n(E) - n((AUB)')

So n(AUB) = 40 - 6 = 34

Now all u hv to do is use the formulae,

n(AUB) = n(A) + n(B) - n(ANB)

So when u substitute above values,

34=22 + n(B) - 8

So,

n(B) = 4

4 0

3 years ago

Vickie made a recipe for 144 fluid ounces of scented candle wax. How many 1 cup candle molds can she fill with the recipe?

jeka57 [31]

There are 8 fluid ounces in 1 cup. You can solve this problem using these proportions:

$\frac{8}{1} = \frac{144}{x}$

It states that there are 8 fluid ounces in every 1 cup and 144 fluid ounces in every <em>x </em>cups. We have to solve for <em>x </em>using cross-multiplication:

$8x = 144 \\ x=18$

Vickie can fill 18 1 cup candle molds with 144 fluid ounces of scented candle wax.

6 0

3 years ago

I need help on this :,)

Stella [2.4K]

4.5 times 2.5= 11.25

5 0

3 years ago

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PLEASE HELP!!!!!! FAST!!!!!!!!

klio [65]

Answer:

%8.75 error