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seropon [69]
3 years ago
8

Solve using substitution. y = 10x + 8 y = 5x + 3

Mathematics
2 answers:
hoa [83]3 years ago
5 0

Answer:

-1,-2

equation: x = -1, y = -2

Step-by-step explanation:

Gelneren [198K]3 years ago
4 0

Answer:

x = -1

Step-by-step explanation:

10x + 8 = 5x + 3

5x = 3 - 8

x = -1

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Use the exterior angle theorem to find the value of x in the triangle below.
Arisa [49]

Answer:

Option A

Step-by-step explanation:

By using the definition of an exterior angle of a triangle,

"Measure of the exterior angle of a triangle is equal to the sum of measures of the opposite interior angles"

m∠STP = m∠SWT + m∠STW

Substitute the measures of the angles from the picture attached,

15x = (7x + 1) + (7x + 6)

15x = (7x + 7x) + (1 + 6)

15x = 14x + 7

15x - 14x = 7

x = 7

Therefore, Option A will be the correct option.

7 0
3 years ago
A student solved for the radius of a circle with a circumference of 12π
padilas [110]

Answer:

Step 4 is incorrect  he did not divide correctly from step3 to step 4

Step-by-step explanation:

The circumference of a circle is

C = 2 * pi *r

We know the circumference is 12 pi

12pi = 2 pi *r

Divide each side by 2 pi

12 pi/2pi = 2pi r/ 2pi

6 = r

From step 3 The student did not cancel the pi in the top and the bottom on the right hand side to isolate r

In step 4 he got 6 =pi r  instead of pi

3 0
3 years ago
Three brothers share 2 sandwiches equally.How much of a sandwich does each brothers share
Irina-Kira [14]

Answer:

2/3 per brother

Step-by-step explanation:

2/3 plus 2/3 plus 2/3 is 6

5 0
3 years ago
Tessa is training for a marathon she runs 13 km a day for 3 days
creativ13 [48]

nice

i think there's supposed to be more to the problem lol

4 0
2 years ago
Read 3 more answers
2x^2 +5x+3/x^2+2x+1​
german

Answer:

\frac{2x+3}{x+1}

Step-by-step explanation:

2x² + 5x + 3 = (x + 1) (2x + 3)

x² + 2x + 1 = (x + 1) (x + 1)

(x + 1) cancels out because there is one in the denominator and the numerator, leaving you with the answer.

Hope this helps!

3 0
3 years ago
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