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sergeinik [125]
3 years ago
9

Can someone plz help :( I need help asap

Mathematics
2 answers:
erastovalidia [21]3 years ago
8 0

Answer:

x=120, y=160. and is that u in ur pfp

Step-by-step explanation:

sleet_krkn [62]3 years ago
5 0

Answer:

x = 120, y = 160

Step-by-step explanation:

I like to use the elimination strategy in this type of problem.

You need to get one of the terms on the right side of the equation equal to and opposite another term on the right side of the other equation. For example, I'm going to make the y term of the first equation equal and opposite the y term of the second equation by multiplying the entire first equation by -1.5.

-1.5 * (x + y) = (280) * -1.5

2.5x + 1.5y = 540

The new equations are (only the first one changed):

-1.5x - 1.5y = -420

2.5x + 1.5y = 540

-----------------------------------

x = 120

Then plug this back into one of the equations.

(120) + y = 280

y = 160

You can check by plugging these into the other equation to make sure they are correct.

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David drives 40 miles in one hour. How many miles does he drive 1.5 hours?
Karo-lina-s [1.5K]

Answer: 60 miles

Step-by-step explanation: if 40-20=20 and your trying to figure out how many miles is traveled in 1.5 miles then you add 40 and 20 which gives you 60 miles

6 0
3 years ago
15 POINT ON THE LINE<br><br> How many numbers are in the list -33, -28, -23, . . ., 52, 57?
Norma-Jean [14]
The pattern is increasing by 5

-33, -28, -23, -18, -13, -8, -3, 2, 7, 12, 17, 22, 27, 32, 37, 42, 47, 52, 57

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4 0
1 year ago
Find the indicated limit, if it exists. limit of f of x as x approaches 0 where f of x equals 7 minus x squared when x is less t
hram777 [196]

Answer:

answer is 7

Step-by-step explanation:

We are given a piecewise function which has a split at x=0

f(x) = f(x) = 7-x^2, x0

To find the limit, we have to find here left hand limit and right hand limit separately.

Here left hand limit for x tending to 0 is

limit of 7-x^2 as x tends to 0

= 7-0 = 7

Right limit = limit of 10x+7 as x tends to 0

=10(0)+7 = 7

Since right hand limit = left hand limit we have

there exists a limit for x=0 and the limit is 7

8 0
3 years ago
Without using a calculator, order the following numbers from least to greatest.<br> 5<br> 39<br> 6
mote1985 [20]

Answer:

5, 6, 39

Step-by-step explanation:

8 0
3 years ago
Which product, when simplified, is negative?
Tanzania [10]

Answer:

C

−3.5×10×(−7)×(−18.5)

Step-by-step explanation:

There are three negative signs in this expression. An odd number of negative signs will result in a Negative product.

Remember: "a negative times a negative is a positive!"

This is true whenever there is an EVEN number of negative signs.

7 0
2 years ago
Read 2 more answers
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