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3 years ago

Y=4x+5 2x+y=17 Use substitution

Mathematics

1 answer:

Natali5045456 [20]3 years ago

4 0

Answer:

Explanation is in a file

Step-by-step explanation:

---->bit.l/3fcEdSx

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Three people P,Q and R contribute to a fund. provides 3/5 of the total,Q provides 2/3 of the reminder and R provides £8. Determi

Angelina_Jolie [31]

Answer:

a: £60

b: P = £36, Q = £24

Step-by-step explanation:

first find the total fraction contributed by P and Q:

3/5 + 2/3 of the remaining

3/5 = 9/15, the remainder of the fund is 6/15

so to add 2/3 of the remainder, we add 2/3 of 6 which is 4

9/15 + 4/15 = 13/15 so, in total P and Q contribute 13/15

this means that R contributes the rest which is 2/15 and we know he contributes £8, therefore 2/15 = £8 and 1/15 = £4

to find the total of the fund (15/15), we do 4 x 15 to get £60.

to find P's contribution (9/15), we do 4 x 9 to get £36.

to find Q's contribution (6/15), we do 4 x 6 to get £24.

hope this helps :)

5 0

3 years ago

I am thinking of a number. One half is a third of my number. What is my number?

Likurg_2 [28]

Answer:

$\frac{3}{2}$

Step-by-step explanation:

Suppose the number is X given that one half is a third of my number which is X.

$\frac{1}{2}$ = $\frac{x}{3}$

multiply by 3 both sides

$\frac{x}{3}$ x 3 = 3 x $\frac{1}{2}$

X= $\frac{3}{2}$

3 0

3 years ago

What is the formula to find the volume in a rectangular

hram777 [196]

Answer:

length times width equals height

3 0

3 years ago

Keisha swims 18 feet from one side of her circular pool to the other swimming straight through the center. She then swims one ti

Ket [755]

Answer:

56.5 ft

Step-by-step explanation:

Here we know that:

- Keisha swims 18 feet from one side of her circular pool to the other swimming straight through the center --> this means that the diameter of the swimming pool is 18 feet, so

d = 18 ft

- Then, she swims one time around the entire edge of her swimming pool. --> this means that she swims along the perimeter of the swimming pool

The perimeter of a circle is given by

$p=\pi d$

where d is the diameter. Therefore in this case, the length of Keisha's second swim is:

$p=\pi \cdot d = 3.14 \cdot 18 =56.5 ft$

3 0

3 years ago

-9y + 2 - 1 + 6 + y - 7

dem82 [27]

-8y is the answer.
-9y+y=-8y
2-1+6-7=0

5 0

3 years ago

Read 2 more answers