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Hoochie [10]
3 years ago
11

Hey who ever can help me, I give 25 points

Mathematics
1 answer:
Nadusha1986 [10]3 years ago
5 0

4x+2y=18

-2(2x+3y=15)=-4x-6y=-30

4x+2y=18

-4x-6y=-30

-4y=-12

y=3

2x+3(3)=15

2x+9=15

2x=6

x=3

(3,3)


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∠A=6x+5 ∘ space, start color blueD, angle, A, equals, 6, x, plus, 5, degree, end color blueD \qquad\green{\angle B=4x + 45^\circ
anyanavicka [17]

Answer:

Step-by-step explanation:

Find the required figure in the attachment. From the figure, <A = <B (alternate interior angle)

Given

∠A=6x+5

∠B=4x+45

Since <A = <B hence;

6x+5 = 4x+45

Collect the like terms

6x-4x = 45-5

2x = 40

Divide both sides by 2;

2x/2 = 40/2

x = 20

Hence the value of x is 20°

Next is to get the measure of <A

Since <A = 6x+5

Substitute x = 20° into the expression

<A = 6(20)+6

<A = 120+6

<A = 126°

Hence the measure of <A is 126°

5 0
4 years ago
4/3=12/x in proportion
Zolol [24]

Answer:

9

Step-by-step explanation:

Cross Multiply: \frac{4}{3} =\frac{12}{x}

Simplify: 4x=36

x=9

5 0
3 years ago
write an expression that represents the cost of one carful of nonstudents ($12 per person). Use x as the number of people who ri
gayaneshka [121]
Okay so each person is $12


Then you need to times that for how many people are in the car x.


Since x is a variable and not a number it can go right next to the 12


You answer should be 12x
7 0
3 years ago
The price of a sandwich is $1.50 more than the price of a smoothie, which is d dollars. What does the expression d + 1.5 represe
tatuchka [14]
The price of a sandwich
6 0
3 years ago
–4.2 = –1.96(m − 10) + –4.2<br> Find variable
marshall27 [118]

Answer:

m=10

Step-by-step explanation:

–4.2 = –1.96(m − 10) + –4.2

–4.2=-1.96m+19.6-4.2

-19.6=-1.96m

m=10

4 0
3 years ago
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