how do i use the substitution method for these equations
y=3x+4
y=5x+12

Answers

Answer 1

Answer:

hello there mate

Step-by-step explanation:

Answer 2
Good day !
In this equation , you can solve the two equations directly .
You have been given the value of y In both cases.
So 3x+4=5x+12
=3x-5x=12-4
-2x=8
X=-4




Sorry if it’s incorrect!

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The Latino Rams at Englewood High school are seeking to raise at least $750 in a fundraiser to pay for their end-of-the year field trip to Islands of adventures.

Answers

Answer:

x ≥ $750

Step-by-step explanation:

pls answer each correctly
and show the workings

Answers

Answer:

24)

[tex] \frac{4}{5} [/tex]

[tex]25) - \frac{4}{5} [/tex]

[tex]14)1[/tex]

15)19

16)5

17)3

18)5√5

19)8n²√2

What is the answer to
1. b+4=2b-5
2. -6-29=5x-7
3. 10h+12=8h+4
4. 7a-17=4a+1

Answers

Answer:

b=9

(assuming you meant -6x) x = -2

h = -4

a = 6

Step-by-step explanation:

I need the answer please help me

Answers

Answer:

-29.988 or if you round up -30

Step-by-step explanation:

1) Convert fractions to decimals  

    3.6 x (-8.33) = -29.988

Answer:

I think its this but not sure

Which model represents the product 3/4 x 1/3

Answers

Answer:

The first one

Step-by-step explanation:

A baseball is hit along the third base line with a speed of 100 ft/s. At what rate is the balls distance from first base changing when it crosses third base?

Answers

Solution :

From the triangle,

[tex]$x^2 = s^2 + 90^2$[/tex]

[tex]$x = \sqrt{s^2 + 90^2}$[/tex]

Now differentiating w.r.t "t", we get

[tex]$\frac{dx}{dt}=\frac{d}{dt}\left(s^2 +90^2 \right)^{1/2}$[/tex]

    [tex]$=\frac{1}{2}\left(s^2 + 90^2 \right)^{\frac{1}{2}-1} \cdot 2s \cdot \frac{ds}{dt}$[/tex]     [chain rule]

    [tex]$=\frac{1}{2}\left(s^2 + 90^2 \right)^{-\frac{1}{2}} \cdot 2s \cdot \frac{ds}{dt}$[/tex]

    [tex]$=\frac{s}{\left(s^2 + 90^2\right)^{\frac{1}{2}}} . \frac{ds}{dt}$[/tex]  

But given that [tex]$\frac{ds}{dt}$[/tex] = 100 ft/s

When all the ball crosses the third base, this means that s = 90. So substituting the value of s and [tex]$\frac{ds}{dt}$[/tex]  in [tex]$\frac{dx}{dt}$[/tex] , we get

[tex]$\frac{dx}{dt} = \frac{90}{\left(90^2 +90^2\right)^{1/2}} \times 100$[/tex]

[tex]$\frac{dx}{dt} = \frac{90}{\sqrt{8100+8100}} \times 100$[/tex]

[tex]$\frac{dx}{dt} = 50\sqrt2$[/tex]

    = 70.710 ft/s    

Raul sells fancy new TVs. They cost $600. He sells the TV for $900. What is his percent markup? show your work​

Answers

Answer:

His percent markup is 150%

Step-by-step explanation:

Will give brainliest if helpful!!!!! :)
Solve the following quadratic equation by factoring:
5r^2 = 80

Answers

Answer:

I hope this help

Step-by-step explanation:

I hope this help

Step-by-step explanation:

HOPE IT HELPS

HAVE A NICEE DAY

I will be marking you brainiest and give you 5 stars if you can answer this math question.

Christy is packing for her family’s vacation. She has 5 tops, 3 bottoms, and 2 pairs of shoes. Assuming she wears a top, a bottomless and a pair of shoes with each outfit, how many possible combinations can she make?

Answers

Answer:

8

Step-by-step explanation:

Subtract.

15 8/12−8 5/12

Answers

Answer:

158/12-85/12 equals this in a decimal 6.083333333

and in a factor it is 73/12

Step-by-step explanation:

HOPE I HELPED

Simplify the expression 7b + 7 + 5b – 5b + 2a – 12.
Show your work!

Answers

Answer:

2a+7b-5

Step-by-step explanation:

7b + 7 + 5b – 5b + 2a – 12

2a+7b+5b-5b+7-12

2a+7b-5

Lisa is on a trip of 1,515 miles. She has already traveled 225 miles. She has 3 days left in her trip. How many miles does she need to travel each day to complete the trip?
A.
655
B.
430
C.
1,290
D.
860

Answers

Answer:

b.430

Step-by-step explanation:

........The answer is B

Jody works at an ice cream counter. The ice cream costs $3 per cone. Let c represent the number of ice cream cones she sells. Let p represent
the total cost paid by the customers.
Choose two correct statements about the variables in this situation,
A. The cost per cone depends on the number of cones sold.
B. The total cost paid by customers depends on the number of cones sold,
O c The number of cones sold is independent of the total cost paid by customers.
D. The total cost paid by customers is independent of the number of cones sold,

Answers

Answer:

B and C are correct Hope this helps <3

Step-by-step explanation:

Answer:

B and C?

Step-by-step explanation:

Im a little unsure about C but im about99% sure that is correct

Find the area of the shape.

Answers

Answer:

39.5 [tex]ft^{2}[/tex]

Step-by-step explanation:

We need to take this shape by shape

Top triangle

a = b*h/2

a = 3*2/2

a = 6/2

a = 3

__________________________________________________________

Bottom triangle:

a = b*h/2

a = 3*3/2

a = 9/2

a = 4.5

__________________________________________________________

Rectangle:

a = b*h

a = 8*4

a = 32

__________________________________________________________

Now add them all up

3 + 4.5 + 32 = 39.5

The area of the shape is 39.5 [tex]ft^{2}[/tex]

Hope this helped!

Answer the question in the picture please

Answers

Answer: 1.23

Step-by-step explanation:

0.3*4.1=

Answer:

It is 1.23

Step-by-step explanation:

When multiplying decimals, multiply it as a whole number, and move the decimal to the left the amount of times it was in the problem.

i.e. .3 times 4.1

.3 has 1 number behind the decimal and 4.1 also has one number behind the answer. This means that you will move the decimal to the left twice in 123.0 to 1.23

Enter a value to balance the hanger

Answers

Answer:

Try 2.75 it should work

Step-by-step explanation:

prove me wrong

What expression is equivalent to -2x + 7

Answers

I think that’s the answer

help pls its iready ill give brainiest

Answers

c=2pi2
c=12.56

so the last one

Answer:

I think that it is the second one

Which letter is in the solution set for graph #1

Answers

Answer:

Its 50/50 with T or B I say the answer is B

Step-by-step explanation:

Simplify the expression in e^5

Answers

Answer:

Step-by-step explanation:

ok im not sure if this is it but 148.41315910

Answer:

148.4

Step-by-step explanation:

Which ratio does NOT represent this situation?
1 point
o
3:12
9:3
8:2
1:3

Answers

Answer:

1:3

Step-by-step explanation:

3:12 is the amount of shaded circles to all circles, 8:2 is basically the same thing as 3:12 and 9:3 is the amount of shaded circles to the amount of non-shaded circles.  1:3 wouldn't work because it is not the right ratio.

3a^4b^-2c^3 simplifed

Answers

3a^4c^3/ b^2 is the equation simplified

Factor the expression.
2x + 8

Answers

Answer:

2x+8

2 is common

2(x+4)=0

Step-by-step explanation:

Can someone help me do this it’s an emergency

Answers

That is so hard i was so confused


a) Rotation, then reflection
b) Translation, then rotation
c) Rotation, then translation
d) Translation, then reflection ​

Answers

D) translation, then reflection

Sarah and $600 per week and spends 15% of earnings on transportation how much does Sarah Spain and transportation every week plz this is very important

Answers

Answer she spent 90$ so she should have 510 dollars left

Step-by-step explanation:

15% of 600 is 90. 90-600=510

510 he’s right hope it helps

please help asap I'll mark brainliest​

Answers

Answer: G

7/9 yd= 28 in

2.5ft = 30 in

2 2/3 ft= 32 in

33in = 33in

I hope this helps:

Dave and Sue share a pizza in the ratio 2:3.They eat it all.
a. What fraction of the pizza did Dave eat?
b. What fraction of the pizza did Sue eat?​

Answers

Answer:

a.5/2

b.5/3

because dave eat 2 of the pizza pices from 5 pices

and sue eats 3 of the pizza pices of 5

Three pounds of bananas cost $7How much does 1 pound of bananas cost?

Answers

Answer:

Step-by-step explanation:

3 pounds:7 dollars

1 pound: 2.33 dollars

divide 3 by 3 to find 1. divide 7 by 3.

7/3=2.333 each pound of bananas will cost $2.33

Please help.... which ordered pair is NOT a solution to the inequality in the graph

Answers

Answer:

(5, 1) is the answer.

Step-by-step explanation:

This is because the point (5, 1) is NOT in the shaded area of the inequality. All the other points are either in the shaded area of the inequality, or on the line of the inequality equation.

Hope this helps!! :)

#teamtrees #WAP (Water And Plant)

Answer:

(5,1)

Step-by-step explanation:

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