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atroni [7]
3 years ago
10

This is for algebra 1

Mathematics
1 answer:
Reika [66]3 years ago
3 0

Answer:

19

Step-by-step explanation:

sub in -4 where x is

(-4)²+3 = 16 +3 = 19

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500 x 30 x 8 - 200 x 30
Savatey [412]

Answer:

It's going to be 114,000.

3 0
3 years ago
Read 2 more answers
Please help!! I don’t get it
Marrrta [24]

Answer:

Each hotdog costs $1.65

Each juice drink costs $1.05

Step-by-step explanation:

Let's begin by letting x represent the number of hot dogs and y the number of juice drinks.

The Baxter family bought 6 hot dogs and 4 juices for $14.10.

6x + 4y = 14.10

The Farley family bought 3 hot dogs and 4 juices for $9.15.

3x + 4y = 9.15

Now, we subtract these equations.

6x + 4y = 14.10\\- (3x + 4y = 9.15)

Since y has reversed coefficients, it gets eliminated. Now solve for x.

6x+4y-3x-4y=14.1-9.15\\3x = 4.95\\\frac{3x}{3} = \frac{4.95}{3}

\frac{4.95}{3} = 1.65

x = 1.65

NOW, we find y by substituting x with 1.65 (in either equation).

We'll use the first equation.

6x + 4y = 14.10

6(1.65) + 4y = 14.10

9.9 + 4y = 14.10\\4y = 14.1 - 9.9\\4y = 4.2

\frac{4y}{4} = \frac{4.2}{4} \\y = 1.05

x = 1.65

y = 1.05

x represents hotdogs and y represents juice drinks.

Therefore, each hotdog costs $1.65 and each juice drink costs $1.05.

<em> I hope this helps! :)</em>

6 0
3 years ago
Find a positive number that is 42 less than its square.
Kruka [31]
It would be 49 bc the square root of 49 is 7 49-7=42
6 0
3 years ago
A Taxi Service charges $1.00 for the first 1/10 mile then $0.10 for each additional 1/10 mile after that.
kondaur [170]

9 / 10 = Total Price: 1.90

2 = Total Price: 3.00

3 1 / 10 = Total Price: 4.10

10 = Total Price: 11.00

4 0
3 years ago
Ivan is 162.4 centimeters tall and is building a tower out of cans that he wants to be as tall as he is. He wants to know how ma
Yuliya22 [10]

Answer:

he needs 24 cans

Step-by-step explanation:

162.4 - 28 = 134.4

134.4 divided by 56 = 2.4

2.4 * 10 = 24

8 0
3 years ago
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