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enot [183]
3 years ago
15

Question 13

Mathematics
2 answers:
Svetradugi [14.3K]3 years ago
8 0

Answer:

x-3=15

x=18

y+3=12

y=9...........

Nezavi [6.7K]3 years ago
6 0
Answer: y=9

step by step explanations
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Find the next three terms in the sequence 625, 250, 100, 40...
pentagon [3]
Hi!

To solve this, let's divide

625/250 = 2.5

So is the pattern.. x/2.5 = x2/2.5 = x3/2.5...

We can test this theory by multiplying

100 x 2.5 = 250

Since 250 comes before 100 in the sequence then our theory is correct!

So to find the next numbers, divide:

40/2.5 = 16
16/2.5 = 6.4
6.4 = 2.56

The answer is C.

Hope this helps! :)
6 0
3 years ago
Caleb bought groceries and paid \$1.60$1.60dollar sign, 1, point, 60 in sales tax. The sales tax rate is 2.5\%2.5%2, point, 5, p
saveliy_v [14]

Answer:

Price of Caleb's groceries before tax = $64

Step-by-step explanation:

Let the price of groceries before tax be =$ x

Sales tax charged = $1.60

Sales tax rate =2.5%

Sales tax charged in terms of x will be = 2.5% of the Original price of grocery =2.5\% of x = 0.025\times x=0.025x

So, we have,

0.025x=1.60

Dividing both sides by 0.025

\frac{0.025x}{0.025}=\frac{1.60}{0.025}

∴ x=64

∴ Price of Caleb's groceries before tax = $64

5 0
3 years ago
Solve each equation using the substitution method.<br><br> 8t=56
Vedmedyk [2.9K]

Answer: t= 7

Step-by-step explanation:

Take 56 divided by 8 and you get the remainder of 7. So t must equal 7.

8 0
3 years ago
HELP PLEASE
iragen [17]

Answer:

third number = 4,

equation of y, y = 5x - 11

equation of n, n = 4x

equation of x, n + x + y =19

Step-by-step explanation:

so lets write evertything as a n equation. n + x + y =19. N is the first number, x is the second number, and y is the third number. We will write the equation for y as follows 5x - 11. N will be four times the second number, so 4x. If substitute the values for out equation for x we will find what x equals to. So (4x) + x + (5x - 11) = 19

10x = 30

x = 3.

Then you substiute the answer for x in the equation for y. This will get you 5(3) - 11

15 - 11

4 = third number

4 0
3 years ago
Three siblings are participating in a family-friendly running event. - The oldest sibling begins at the start line of the race a
Aleonysh [2.5K]

Answer:

What is le question

Step-by-step explanation:

?

3 0
3 years ago
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