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poizon [28]
3 years ago
10

You have a total of 42 math and science problems for homework you have 10 more math problems and science problems how many probl

ems do you have in each subject use a system of linear equations to justify your answer
Mathematics
2 answers:
Kipish [7]3 years ago
3 0
<span>X= math problems y= science problems x +y =42 x= y+10 Substitute: (y+10) + y =42 Combine y: 2y +10=42 Solve for y: y= 16 There are 16 science questions and 26 math questions</span>
Kryger [21]3 years ago
3 0
Math problems→x
Science problems→y
x+y=42
x=10+y

10+y+y=42⇒2y=32⇒y=32/2⇒y=16
x=10+y

y=16
x=10+16⇒x=26
I have 26 math problems and 16 science problems.

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A new youth sports center is being built in a safe harbor. The perimeter of the rectangular playing field is 510 yards. The leng
podryga [215]

Answer:

<h2>L=203 yards</h2><h2>W=52 yards</h2>

Step-by-step explanation:

Step one:

given data

perimeter= 510 yards

let the width be x, width=x

length= (4x-5)-----quadruple mean 4 times

Step two:

the expression for perimeter is

P=2L+2W

510=2(4x-5)+2x

510=8x-10+2x

510+10=8x+2x

520=10x

divide both sides by 10

x=520/10

x=52

the width is 52 yards

the lenght is  (4x-5)

L=4(52)-5

L=208-5

L=203 yards

4 0
3 years ago
Simplify the expression by adding or subtracting the linear expressions. 7x + 9x + 8 + 4x + 5 *
Lady_Fox [76]

Answer:

A

Step-by-step explanation:

7x+9x+4x+8+5=20x+13

20+13.

Hope this helps :D

4 0
3 years ago
Suppose that y varies directly as the square of x, and that y=567 when x=9. What is y when x=4
Gwar [14]

Answer:

y  = 112

Step-by-step explanation:

If  y varies directly as the square of x

mathematically;

y ∝ x²

y = kx² where 'k' is the constant of proportionality

let u know the value of k for this equation by making k the subject of the formular from y = kx²

divide both sides by x²

k = y / x²

given that  y = 567 x = 9

k = 567/(9)²

k = 567/81

k = 7

now to get the value of  y when x = 4

from the equation conneting x, y,

y = kx²

y = 7 × (4)²

y = 7 × 16

y  = 112

6 0
3 years ago
Which rational number is one tick mark to the right of Negative 6 Over 4 on the number line below?
murzikaleks [220]

Answer:

The number line is missing, but as we are know that the number marked in the number line is -6/4, i will guess that the ticks are spearated by fourts (the distance between each tick is 1/4).

Now, for the number at the right of -6/4, we should add the distance for one tick, this means that the number at the right is:

-6/4 + 1/4 = -5/4.

Now i will give some other examples:

Now, if the distance between ticks is 2/4, then the number at the right will be:

-6/4 + 2/4 = -4/4 = -1

Now, if the distance between ticks is 3/4, the the number at the right will be:

-6/4 + 3/4 = -3/4.

4 0
3 years ago
What is 1/10 of 0.06
Vesna [10]

Answer:

0.006

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
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