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kati45 [8]
3 years ago
6

carly and rob combined their dvd collections. now they have 42 dvds in all carly had 4 more dvds than rob. how many dvds did car

ly have?
Mathematics
2 answers:
Sergio039 [100]3 years ago
7 0
The best thing to do here is to subtract the difference, which is 4. 42-4=38. You've then got to split them in half, 38/2=19. Therefore, Rob had 19 and Carly had 23 Hope this helps :)
mrs_skeptik [129]3 years ago
5 0
So r+c=42 c=4+r subsitute c=4+r for r in r+c=42 r+4+r=42 add like terms 2r+4=42 subtract 4 from both sides 2r=38 divide both sides by 2 r=19 rob=19 subsitute r=19 for r in c=4+r c=19+4 carly=23
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Kim’s bill at a O’Charley’s Restaurant is $27 and she leaves a 15% tip.
Alborosie

Answer:

a, $4.05

b, 1.62

c, 5.67

Step-by-step explanation:

to find 15% of 27, do 0.15*27=4.05

similarly, for b, multiply 0.06*27 to get 1.62

add 4.05+1.62=5.67

6 0
3 years ago
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Henry says that his set of numbers includes all integers. Iliana argues that he is wrong.
Rudiy27

B. Iliana is correct because Henry included a fraction. Fractions are not integers.

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2 years ago
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Please help explanation if possible
tino4ka555 [31]

Answer:

2-point shots: 31

3-point shots: 6

Step-by-step explanation:

In order to solve this system of equations, we can use the method of elimination. We can start by multiplying the equation x + y = 37 by 2 in order to get the x terms to cancel out in the next step(They can do that because we are making them the same value, 2x). So, we get:

2(x + y) = 2(37)

2x + 2y = 74

Now, we can subtract the equation 2x + 2y = 74 from the equation 2x + 3y = 80 in order to make a one-variable equation:

2x + 3y = 80

-(2x + 2y) = -(74)

y = 6

We can plug in the value of y in one of the equations to find x:

x + (6) = 37

x = 31

Since x stands for the amount of 2-point shots and y for the 3-point shots, we can say:

2-point shots: 31

3-point shots: 6

3 0
2 years ago
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Mr Ordonez gives his math students 34 quizzes during 17 weeks of school. If he gave the same number of quizzes each week, how ma
meriva
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Using division we get
34/17= 2
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3 years ago
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Jason is collecting coins from different countries around the world. He currently has coins from 105 countries and plans to add
BlackZzzverrR [31]

Answer:

15 equation: 195=105+6x

Step-by-step explanation:

he starts out with 105 and the rate of change is 6x so to get the answer u wanna make and equation (195=105+6x) then you would subtract the 105

195=105+6x

-105  -105

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90=0 +6x

then u would divide by 6

90/6=6x/6

x=15

 

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2 years ago
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