3 years ago

PLEASE HELP GIVE YOU BRAINLYEST

Mathematics

1 answer:

Harrizon [31]3 years ago

8 0

Answer:

(-6,0)

Step-by-step explanation:

the y-axis is any (x number, 0)

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What is the value of y = 7 - 2x when<br> X=4?<br> When x = 4, y =

iragen [17]

Y=7-2x=>y=7-2x4(x=4)
y=7-8=-1=>
x=4;y=-1

4 0

3 years ago

Read 2 more answers

The ratio of money in Obi's wallet to Rudy's wallet one day was 5:2.

mamaluj [8]

Answer:

The amount that Obi initially had was £20

Step-by-step explanation:

Let

x ----> amount that Obi initially has

y ----> amount that Rudy has

we know that

$\frac{x}{y} =\frac{5}{2}$

$x=2.5y$ ----> equation A

$x-20=y-8$

$y=x-20+8$

$y=x-12$ ----> equation B

Solve the system by substitution

substitute equation A in equation B

$y=(2.5y)-12$

solve for y

$2.5y-y=12\\1.5y=12\\y=8$

Find the value of x

$x=2.5(8)=20$

therefore

The amount that Obi initially had was £20

4 0

4 years ago

The ratio of the number of girls in choir is 5 to 4 there are 60 girls in choir how many boys are in choir

Ghella [55]

Answer:

48 boys

Step-by-step explanation:

4 0

4 years ago

An equation is shown. 5.25 - 1.75 + c = 9.25 What value of c makes the equation true? *

Artyom0805 [142]

B 5.75

Explaining:
5.25 - 1.75 = 3.5
3.5 - 9.25 = 5.75

5 0

3 years ago

If the zeros of a quadratic equation are 7 and - 4 , what would be the factors?

noname [10]

Answer:

(x - 7) , (x + 4)

Step-by-step explanation:

given the zeros of a quadratic equation x = a and x = b , then

the corresponding factors are (x - a) and (x - b)

here the zeros are x = 7 and x = - 4 then factors are

(x - 7) and (x - (- 4) ) , that is

(x - 7) and (x + 4)

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2 years ago