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lbvjy [14]
2 years ago
12

we need any help on this home I can you turn it in by Monday so can you help me please. i need on 9 and 10

Mathematics
1 answer:
marta [7]2 years ago
7 0
9) yes, he is correct.   

50% as a decimal would be 0.50
7% as a decimal would be 0.07

10)Buy and Bye has a greater discount because 30% as a decimal is 0.30 and 1/4 as a decimal is 0.25.

0.30 is bigger than 0.25 so it is a bigger discount
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Use substitution to solve the linear system of equations. y=-3x+1 y=2x-4 (-2, 1) (1, -2) (1, 2) (-1, -2)
shtirl [24]

Answer:

Solution of the equations is (1, -2).

Step-by-step explanation:

Two linear  equations given in the question are

y = -3x+1-------------(1)

and y = 2x-4 ------------(2)

To solve these equations by substitution method we will substitute the value of y from equation (1) to equation number (2).

-3x+1 = 2x-4

Now we add 3x on both the sides of the equation

3x-3x+1 = 3x+2x-4

1 = 5x-4

we will add 4 on both the sides

1+4 = 5x-4+4

5 = 5x

Then we divide the equation by 5

5/5 = 5x/5

x = 5/5 = 1

Now we solve the equation (1) for the value of y by putting x = 1

y = -3(1)+1 = -3+1 = (-2)

So the solution will be (1 -2).



6 0
3 years ago
Malcolm has $638.54 in his checking account. He must maintain a $500 balance to avoid a fee. He wrote a check for $159.50 today.
lubasha [3.4K]
Let any variable such as x represent the least amount of money that Malcolm needs to deposit. His balance from his checking account is $638.54. Subtract $159.50 from this amount.

With the condition that he must maintain $500, the inequality becomes,

                                     (638.54 - 159.50) + x <span>≥ 500

                                             479.04 + x </span><span>≥ 500

                                                    x </span><span>≥ 20.96</span>
5 0
2 years ago
Tanya has several different ways she likes to walk home. One route takes 20 minutes, two of the routes take 30 minutes, and two
stira [4]
50% because there are 4 routes and 2 take 30 minutes, 2/4 = 50/100 = 50%
8 0
3 years ago
Read 2 more answers
What is the answer step by step
vesna_86 [32]

2 ≤  2w +4 ≤ 12

Subtract 4 from all 3 terms:

-2 ≤ 2w ≤ 8

Divide all 3 terms by 2:

-1 ≤ w ≤4

7 0
3 years ago
A store owner determined 80% of customers bought a drink and 30% of customers bought a snack. If the store sold 120 snacks that
NISA [10]
The answer is 196 if i stand corrected
8 0
3 years ago
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