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Romashka-Z-Leto [24]
3 years ago
12

1. Joanna is saving up for a new car. Her parents said that once she has $1000 saved up, they would help her

Mathematics
1 answer:
iris [78.8K]3 years ago
7 0

9514 1404 393

Answer:

  60 hours

Step-by-step explanation:

We want Joanna's total savings to be ...

  bank account + gift + earnings = 1000

  300 +100 +10h = 1000

  10h = 600 . . . . subtract 400

  h = 60 . . . . . . . .divide by 10

Joanna needs to babysit for  60 hours to earn the money she needs.

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Solve the system using substitution.<br> 2x = 5y + 14<br> x = 5y
andrew-mc [135]

Answer:

<h2>y = 2.8</h2><h2>x = 14</h2>

Step-by-step explanation:

To solve an equation, we can only have one variable. In this case, we are given the system 2x = 5y + 14. However, we are given the value of x in terms of y. We can substitute 10y in for 2x and solve.

10y = 5y + 14

First, we need to get all the variables on one side of the equation, so we subtract 5y.

5y = 14

Divide by 5

y = 14/5 or 2 4/5 or 2.8

Now for the x part.

2x = x + 14

Subtract 1x

x = 14

Now we check our answer.

2(14) = 5(2.8) + 14

28 = 14 + 14

28 = 28

Because 28 equals 28, our solutions are correct.

7 0
3 years ago
2x + 3 + x2; for x = 4
Irina-Kira [14]

Answer:

Pretty sure it's 27

Step-by-step explanation:

(2 4= 8) + 3 (4 4= 16)=27

6 0
2 years ago
Read 2 more answers
Helpp pleaseee help graph thinngu​
Anna [14]
The guy above did you dirty
6 0
3 years ago
Rafael has 17 game cards. He wants to deal each of 6 players the same number of cards. How many cards will each player get? How
vovangra [49]

Answer:

Each players will get 2 cards.  There will be 5 cards left.

Step-by-step explanation:

6x3=18<-- 1 more than how many he has.

6x2=12<-- each player will get 2 cards.

17-12=5<-- 5 cards will be remained.

Hope this helps.  Please give brainliest

5 0
2 years ago
Find the greatest number you can add to 4315 without having to regroup
harkovskaia [24]
  4315
<u>+5684
</u>  9999    So 5684 is the greatest number you can write.<u>
</u>
7 0
3 years ago
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