All categories

3 years ago

7560 in the ratio 4:5

Mathematics

1 answer:

Margarita [4]3 years ago

3 0

Step-by-step explanation:

Divide 7560 by 9 you get 840. Then you times 840 by 4 you get 3360, Multiply 840 by 5 you get 4200.

You might be interested in

The dimensions of a rectangle can be given by x+9 and x-2. If the area is 60ft^2, what is the value of X?

Veronika [31]

Answer:

Step-by-step explanation:

(x + 9) * (x - 2) = 60

x^2 - 2x + 9x - 18 = 60

x^2 + 7x - 18 = 60

x^2 + 7x = 78

FACTORING:

x(x + 7) = 78

x = 6

6 0

3 years ago

What is the area of this trapezoid?

alukav5142 [94]

Answer:

A=0.5(a+b)h

=0.5(27+17)4=88units^2

Step-by-step explanation:

8 0

3 years ago

Evaluate using the finite geometric sum formula

Sever21 [200]

Answer:

$S_9=-18.703$ .

Step-by-step explanation:

The given series is,

$\sum_{i=1}^9(-\frac{1}{2})^{i-1}$

When we substitute $i=1$ , we get the first term, which is $a_1=-28(-\frac{1}{2})^{1-1}$

This implies that,

$a_1=-28(-\frac{1}{2})^{0}$

$a_1=-28(1)=-28$ .

The common ratio is

$r=-\frac{1}{2}$

The finite geometric sum is given by the formula,

$S_n=\frac{a_1(r^n-1)}{r-1} , -1\:$ .

Since there are 9 terms, we find the sum of the first nine terms by putting $n=9$ in to the formula to get,

$S_9=\frac{-28((-\frac{1}{2})^9-1)}{-\frac{1}{2}-1}$ .

$S_9=\frac{-28((-\frac{1}{512})-1)}{-\frac{3}{2}}$ .

$S_9=\frac{-28(-\frac{513}{512})}{-\frac{3}{2}}$ .

$S_9=-28(\frac{171}{256})$ .

$S_9=-\frac{1197}{64}$ .

$S_9=-18.703$ .

The correct answer is B

4 0

3 years ago

Read 2 more answers

A school bake sale earned over $25 from selling cookies, which cost $3 each. How many cookies did they sell? Identify the number

Temka [501]

About 75 cookies is the answer

3 0

3 years ago

Is the answer to -2 + 3 going to be a positive or a negative integer? Why?

Rainbow [258]

Answer:

positive

Step-by-step explanation:

it will be a positive because the 2 numbers don't share the same positivity : meaning -2 is a negative number and 3 is a positive you add those it will be a positive

ps: the answer is 1

8 0

3 years ago