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Nostrana [21]
2 years ago
6

Help me with these 6 questions and I’ll make you the brainlist

Mathematics
1 answer:
Elden [556K]2 years ago
5 0

Answer:

Help me with these 6 questions and I’ll make you the brainlist

i don't know

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Leah is 2 less than 3 times Rachel's age. 3 years from now, Leah will be 7 more than twice Rachel's age. How old will Rachel be
Irina-Kira [14]

Answer:

15

Step-by-step explanation:

Let's call Leah's age l and Rachel's age r. We can write:

l = 3r - 2 (1)

l + 3 = 2(r + 3) + 7 (2)

Substituting (1) into (2) we get:

(3r - 2) + 3 = 2(r + 3) + 7

3r + 1 = 2r + 13

r = 12

In 3 years Rachel will be 12 + 3 = 15 years old.

8 0
3 years ago
Use the image below to answer the following parts.
12345 [234]

Answer:

Step-by-step explanation:

Part A

Since, the given angles are formed at a point are on a straight line, sum of these angles will be 180°.

Part B

(3x - 5)° + (4x + 2)° + (2x + 3)° = 180°

9x = 180

x = 20

Part C

m∠ADB = (3x -  5)°

             = (3×20 - 5)°

             = 55°

m∠DBK = (4x + 2)°

             = (4×20 + 2)°

             = 82°

m∠KBC = (2x + 3)°

             = (2×20 + 3)°

             = 43°

6 0
3 years ago
Point C has a _____ abscissa and a _____ ordinate.
VladimirAG [237]

Answer:

i think its b but im not that sure

Step-by-step explanation:

5 0
2 years ago
Determine the slope and y intercept. Y=3/2x+3
Harlamova29_29 [7]

Slope: 3/2 (the coefficient of x)

Y-Intercept: (0,3) (substituting x = 0 into the equation)

Ans: Yellow

7 0
3 years ago
What is 11x - 3 = 5x + 11
astra-53 [7]
11x - 3 = 5x + 11

11x - 5x = 11+3
6x = 14
x = 14/6 =7/3
3 0
3 years ago
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