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VLD [36.1K]
3 years ago
10

NEED THESE ANSWERS FAST

Mathematics
1 answer:
vladimir2022 [97]3 years ago
6 0

Answer:

1) m=2/9; y-intercept= 17/3

2) m=7 ; y-intercept= 22

3) m= -2/11 ; y-intercept= 100/11

4) m= 13/19 ; y-intercept= -53/13

Step by Step Explanation:

Use the slope formula to find the slope m.

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Dilly is 7 years younger than Dally. In 4 years time she will be half Dally’s age. What is the sum of their ages now?
Step2247 [10]

Answer:

<u>The sum of their ages now is 13</u>

Step-by-step explanation:

Dally's age = x

Dilly's age = x - 7

In 4 years time Dilly will be half Dally’s age, therefore:

Dilly's age plus four equals to half of Dally’s age plus four,

replacing with the values and variables we know:

x - 7 + 4 = (x + 4) /2

x - 3 = (x + 4) /2

2x - 6 = x + 4 (Multiplying by 2 at both sides)

2x - x = 4 + 6 (Like terms)

x = 10 ⇒ x - 7 = 3

<u>The sum of their ages now is 13 (10 + 3)</u>

4 0
3 years ago
A class has 30 people at the beginning of the school term but now has five pupils what is the percent of increase
aleksley [76]
17 percent increase 5/30
8 0
3 years ago
U cant have 3 answers on a question
Anon25 [30]

Answer:

true, unless its a check all that apply and then you can have multiple!

Step-by-step explanation:

hope this helps :)

7 0
3 years ago
PLEASE HELP!!!<br>Find the measure of c. A. 100 B. 10 C. 140 D. 280
fomenos

Answer:

C. 140

Step-by-step explanation:

C = 1/2 ( 360° - 80°)

c = 1/2 * 280°

c = 140°

7 0
3 years ago
∠A and ∠B are supplementary. m∠A = (6x + 5), m∠B = (2x + 15). Find the measure of each angle.
Anastaziya [24]

Answer:

125 and 55

Step-by-step explanation:

180=8x+20

160=8x

x=20

6(20)+5                            2(20)+15=

120+5=125 degrees           40+15=55 degrees

4 0
4 years ago
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