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sattari [20]
3 years ago
14

The table shows the amount of money in your bank account over a period of 5 weeks. You plan to keep saving at the same rate unti

l you have $800 in the account. Which equation could you use to find the number of weeks, n , it would take to reach your goal?
Mathematics
2 answers:
horsena [70]3 years ago
7 0
N=800/5
N=160
He needs to save $160 every week to get $800 in 5 weeks
Juli2301 [7.4K]3 years ago
5 0

Answer:

35n + 100 = 800

Step-by-step explanation:

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Need help please and thanks​
madreJ [45]

Answer:

2. n = 11

4. g = -2

6. t = 21

8. n = 4

10. y = -1

Step-by-step explanation:

2. 63  = -3(1 - 2n)

Dividing both the side by negative 3 we get

-21=1-2n\\2n=1+21\\2n=22\\n=\frac{22}{2} \\\therefore n=11

4. -g + 2(3 + g) = -4(g + 1)

First we will open the bracket by distributive property A( B +C) = AB + AC

-g+2\times 3 + 2\times g = -4\times g + -4\times 1\\-g+6+ 2g=-4g-4\\\textrm{we will take all the g term the left side and the constant to the right side}\\4g-g+2g=-6-4\\5g=-10\\g=\frac{-10}{5}\\\therefore g=-2

6.-3(t +5 ) + (4t + 2) = 8

Using distributive property A( B +C) = AB + AC we get

-3\times t + -3\times 5 + 4t + 2=8\\-3t-15+ 4t + 2=8\\t=8+15-2\\t=21\\\therefore t=21\\

8. -8 - n = -3(2n -4)

Using distributive property A( B +C) = AB + AC we get

-8 - n = -3\times 2n - -3\times4\\-8-n=-6n+12\\\textrm{all the n terms to the left inside and the constant of the right-hand side}\\6n-n=8+12\\5n=20\\n=\frac{20}{5}\\ \therefore n= 4

10. -4( 2 - y) + 3y = 3(y - 4)

Using distributive property A( B +C) = AB + AC we get

-4\times 2 --4\times y + 3y = 3\times y -3\times 4\\-8+4y+3y =3y-12\\\textrm{all the y terms to the left side and the constant to the right side}\\4y+3y-3y=-12+8\\4y=-4\\y=\frac{-4}{4}\\ \therefore y=-1

7 0
4 years ago
Jessica has a penny and a nickel. She flipped both coins. What are the chances that both coins land on tails?
xxTIMURxx [149]

Answer:

Step-by-step explanation:

Here is a list of possible outcomes.

Penny      nickel

Heads      heads

Heads       tails

tails            Heads

tails            tails

Since there are four ways the two coins can land, the chances of getting tails - tails is 1 chance in 4.

7 0
2 years ago
Read 2 more answers
What is the value of the correlation coefficient r of the data set?
Damm [24]

The correlation coefficient r of the data set is <em>-0.28</em>

6 0
2 years ago
What integer is equal to |-10| + |-20|<br><br> Please answer
Stolb23 [73]

Answer:

30

Step-by-step explanation:

The absolute value function always gives a positive value, that is

| - a | = | a | = a

Given

| - 10 | + | - 20 |

= 10 + 20

= 30

5 0
3 years ago
Read 2 more answers
Markup,Discount, Tax find the selling price of each item. Coast of a wagon 229.50 markup 60%
Charra [1.4K]
To find out how much a 60% discount for a wagon that is $229.50, you will have to figure out how to find the discount. First we will find the discount.

229.50 × 0.60 = 137.70

Now, you will subtract that number from the original price

229.50 - 137.70 = 91.80

Now after the discount of 60% the wagon is now $91.80

6 0
3 years ago
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