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Stels [109]
3 years ago
9

A student is trying to solve the system of two equations given below: equation p: y z = 6 equation q: 5y 9z = 1 which of these i

s a possible step used in eliminating the y-term? (y z = 6) ⋅ 9 (y z = 6) ⋅ −5 (5y 9z = 1) ⋅ 9 (5y 9z = 1) ⋅ 5
Mathematics
1 answer:
KiRa [710]3 years ago
7 0

System of equation consists of two or more equations with unknow variables. A possible step used in eliminating the y-term is (y + z  6) *5

<h3>System of equations</h3>

System of equation consists of two or more equatons with unknow variables.


Given the system of equations

y + z = 6

5y + 9z =1

In order to eliminate the variable "y", we <em>will multiply equation 1 by 5 and subtract from equation 2;</em>

5y + 5z = 30

5y + 9z = 1

Subtract

5z - 9z = 30 - 1

-4z =29

This leaves only the variable "z" eliminating variable. "y"

Learn more on system of equation here: brainly.com/question/14323743

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PLS HELP 15 POINTS. Divide 400 by the frequencies for numbers 1-6. This will give you the relative frequency for each number.
skelet666 [1.2K]

Answer:

i dont know what you mean by this but 400 divided by the numbers 1,2,3,4,5,6 ,okay

Step-by-step explanation:

400÷1=400

400÷2=200

400÷3=133.333333333

400÷4=100

400÷5=80

400÷6=66.6666666667

You're welcome

4 0
3 years ago
The cost of 5 squash and 2 zucchini is $1.32. Three squash and 1 zucchini cost $0.75. Find the cost of each vegetable.​
jonny [76]

Answer:

The cost of 1 squash  = $0. 18

The coat if 1 zucchini = $ 0.21

Step-by-step explanation:

Here,Let us assume the cost of  1 squash = $ m

Cost of 1 zucchini = $ n

Now, the cost of 5 squash   = 5 x ( cost of 1 squash)  = 5 x ($ m) = 5 m

Now, the cost of 2 zucchini  =   2 x ( cost of 1 zucchini)  = 2 x ($ n) = 2 n

So, the total cost of 5 squash and 2 zucchini =  Cost of (5 squash +  2 zucchini)

⇒ $ 1. 32  = 5 m +  2 n  ........  (1)

Similarly,

The cost of 3 squash   = 3 x ( cost of 1 squash)  = 3 x ($ m) = 3 m

And, the cost of 1 zucchini  = $ n

So, the total cost of 3 squash and 1 zucchini =  Cost of (3 squash +  1 zucchini)

⇒ $ 0. 75  = 3 m +   n  ........  (2)

or, n = 0.75 - 3 m

Substitute this value in (1) , we get

1. 32  = 5 m +  2 n ⇒ 1.32 =  5 m + 2 (0.75 - 3 m)

or, 1. 32 = 5 m + 2(0.75) - 2(3 m)

or, 1 . 32  =  5 m + 1.5 - 6m

⇒ m = 1. 5  - 1. 32  =  0.18

or, m = 0. 18

So, the cost of 1 squash  = $0. 18

And,the  cost of 1 zucchini = n = 0.75 - 3 m = 0.75 - 3 (0.18)  =  0.21

or, the cost if 1 zucchini = $ 0.21

5 0
3 years ago
Write 17% as a decimal​
netineya [11]
0.17

yuh this is correct lol
5 0
3 years ago
Evaluate the expression when b=4 and x=-2 . <br><br> b-4x
oee [108]

Answer:

12

Step-by-step explanation:

b-4x

Plug in 4 as b and -2 as x

= (4)-4(-2)

Multiply 4 and 2

= 4-(-8)

Two negatives make a positive

= 4+8

= 12

I hope this helps!

4 0
3 years ago
Read 2 more answers
Tomorrow, there is a 4/9 chance of rain in St. Pete. However, in Pinellas Park there is a 55% chance of rain. In which city is t
GalinKa [24]

Answer:

Pinellas Park

Step-by-step explanation:

4/9 as a percent is 44%

4 0
3 years ago
Read 2 more answers
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