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monitta
3 years ago
12

Quiz What is a solution for this system of equations? y= 7x + 2 y = x + 8

Mathematics
2 answers:
Sever21 [200]3 years ago
6 0

If you are looking for the intersect between the two lines, the answer is (1, 9)

PolarNik [594]3 years ago
3 0

Answer:

subtract them is with i think

Step-by-step explanation:

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A new baby is born in France the newspaper reports the baby's mass to be 1.5×10³ kg
Ira Lisetskai [31]

The question only supplied us with the mass of the new baby which is:

1.5\cdot10^3\operatorname{kg}\Rightarrow1500\operatorname{kg}

This mass is too bizzarre & unrealistic for

4 0
1 year ago
the length of a rectangular garden is 3 m greater than the width. The area of the garden is 70m squared. find the dimensions of
Lerok [7]
A = l x w

so you know that the length is 3m longer than the width, so you could use a formula to represent that

w = l + 3

you then substitute the second equation into the first to solve for l

70 = l x (l +3)
70 = l^2 + 3l

you could then rearrange the formula and solve for l using the quadratic formula 

0 = l^2 + 3l - 70

l = -3 +- (square root (3)^2 - 4(1)(70)) / 2(1)
l = -3 +- (square root 9 + 280) / 2
l = -3 +- (square root 289) / 2
l = -3 +- 17 / 2

then you solve for the two seperate roots

l = -3 + 17 /2
l = 14 / 2
l = 7

or 

l = -3 - 17 / 2
l = -20 / 2
l = -10

since a length cannot be negative, this root is not viable. therefore l = 7

to solve for w you would use

w = l + 3
w = 7 + 3
w = 10 

hope this helps! if you did not understand a step or concept please let me know!
4 0
3 years ago
PLS HELP ME ASAP I ONLY HAVE 5 MINITUES
Shkiper50 [21]

Answer:

200 + 50x = 450

Step-by-step explanation:

So, 200 + 50x = 450

50x = 450-200 = 250

X = 250/50

X = 5

Check:

200 + 50(5)

= 200 + 250 = 450.

5 0
3 years ago
Read 2 more answers
HELP ASAP!!! Identify the factored form of each polynomial
Elenna [48]

Answer:

9x2 +42x + 24 <u>is</u> (x + 4) (9x + 6)

9x2 + 30x + 24 <u>is</u> (3x + 6) (3x + 4)

9x2 + 58x + 24 <u>is</u> (9x + 4) (3x + 4)

I tried reversing it, instead of doing these - 9x2 + 58x + 24 I did (9x + 4) (3x + 4)

7 0
2 years ago
HURRY I NEED HELP ASAP 30 POINTS Beginning at the origin, how far do you travel along the x-axis when plotting the point below?
ahrayia [7]

Answer:

You travel 15 units of distance along the x-axis

Step-by-step explanation:

You want the distance from (0, 0) to (15, 5) in the x-axis. It is 15. If the question were the distance between the two points, you may use the distance formula or pythagorean theorem.

4 0
3 years ago
Read 2 more answers
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