Mathematics High School

pls help with these math problems

Pls Help With These Math Problems

Answers

Answer 1

Answer:

Step-by-step explanation:

1)

First we add what we know for y into the second equation.

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

From there, we simplify it

5x-4x-8= -3

x-8=-3

Now we get the x on its own

x=5

and now we add x=5 into the first equation that we had and simplify to find y

y=5+2

y=7

So the answer is x=5, y=7 or (5,7)

2)

For this one we do the same thing as with 1.

Add what we know for y (bottom equation) to the top equation

3x-8(x-8)=24

Now we simplify

3x-8x+64=24

-5x+64=24

And now solve for X

-5x=-40

x=8

And then substitute x=8 to find y

y=8=8

y=0

So the answer is x=8, y=0 or (8,0)

Related Questions

Help!!!!! Please
!!!!;!;!!;!!;

Answers

Answer:

Step-by-step explanation:

(b)

What is the area for the triangle? Pls help!

Answers

The formula for solving is 1/3 bh

So you base would be 10 and height would be 6.

Area would be 24

Answer:

the area is 24cm squared

Step-by-step explanation:

The question is : The firehouse is shown in the shape of a composite figure, how many cubic yards of space are in the fire house?

Answers

Answer:

Step-by-step explanation:

c

.........................

Answers

Answer:

girl- frost on window and... thats not math but kk

Step-by-step explanation:

dew on grass because condensation is water vapor

These cones are similar find the volume of the smaller cone round to the nearest 10th 2 is the radius

Answers

Answer:

4.2 units^3

Step-by-step explanation:

Volume of a cone 1/3(nr^2h)

n = 22/7

r = radius  

h = height

1/3 x (22/7) x (2^2) = 4.2

the tenth is the first number after the decimal place. To convert to the nearest tenth, look at the number after the tenth (the hundredth). If the number is greater or equal to 5, add 1 to the tenth figure. If this is not the case, add zero

HELP HEP HELP LAST ONE OMG

Answers

can you take another photo the top part is a bit cut off

pls help, ill give brainliest

Answers

Answer:

https://www.calculatorsoup.com/calculators/geometry-plane/polygon.php

that might help

Step-by-step explanation:

300% of what number is 75?.

Answers

Answer:

25

Step-by-step explanation:

Find the number by dividing 75 by 3, since 75 is the number tripled.

75/3

= 25

So, 300% of 25 is 75.

Answer:

25

Step-by-step explanation:

300% * x = 75

300/100 * x = 75

x = 75 * 100/300

x = 25


(a) Calculate 8% of £3.25.

Answers

Answer:

8÷100×3.25

=£0.26

hope it is helpful to you

Step-by-step explanation:

8÷100×3.25

=0.26

espero ter te ajudado

What is the slope of the line?

A. 0
B. 1
C. 5
D. Undefined ​

Answers

Answer:

D undefined

Step-by-step explanation:

Solve (x+1)^2 = –5.

A)
x = ±1.75

B)
x = ±5

C)
No real solution

D)
x = ±1

Answers

hi

In R, there is no solution  to the  equation  X² = - ...  

so correct answer is  C

Claire lives 2.2 miles away from the library. She decides to walk to the library with her friend. They have already walked 0.53 miles. How much further do they need to walk to reach the library? Show your work.

Answers

Answer:

2/3

Step-by-step explanation:

22. Dante rides his bicycle due west at 10 miles per hour. Annie rides her bicycle due north
at 12.5 miles per hour. If they both leave Annie's house at the same time, approximately
how far apart, in miles, are they after 4 hours?
A
16
B.
23
C. 64
D. 90

Answers

C in my opinion
#CarryOnLearning

What is the probability that someone in your class wants the New England Patriots to win

Answers

Answer:

Step-by-step explanation:

It all depends on how many people are in your class.

To calculate probability

Determine a single event with a single outcome.

Identify the total number of outcomes that can occur.

Divide the number of events by the number of possible outcomes.

To determine the probability, Use the formula

What is the formula of probability?

P(A) is the probability of an event “A” n(A) is the number of favourable outcomes. n(S) is the total number of events in the sample space.

P(A | B) = P(A∩B) / P(B)

There’s a button for the pic

Answers

D is the correct answer. Please brainliest

Could someone please me find this answer

Answers

Answer:

9/100

Step-by-step explanation:

a percent is 9 out of 100 so it is 9/100

Write the number in 2 equivalent forms as a fraction, decimal, or percent.
11
16

Answers

11.
Fraction - 11/100
Decimal - 0.11
Percent - 11%
16.
Fraction - 16/100
Decimal - 0.16
Percent - 16%

10 in.
10 in.
30 in.
20 in.
Find the area of the arrow above.
square inches
Enter

Answers

How to:

30 x 10 is half of how to find the triangle part which is 300 therefore the other half is also 300 to together it is 600. Now for the rectangle part, it's 10 by 20 which is 200. Therefore, we add the totals of both making the answer. But DONT forget the lables since all these mesurements are in square inches!!

Answer:

800 sq inches

PLEASE GIVE ME BRAINIEST IF I HELPED YOU!!! THANKS!!! ENJOY THE REST OF YOUR DAY/NIGHT!!!

This is geometry please help

Answers

Answer:

9

Step-by-step explanation:

mn ~Jk

mn x 5/3 = 15

mn = 15 x 3/5

MM = 9

Write the equation for a line that passes through (4,-1) and has a slope of 5

Answers

Answer:

y = 5x - 21

Step-by-step explanation:

Since we already know the slope, all we need to do is plug the values of x and y into the equation.

y = 5x + b

-1 = 5(4) + b

-1 = 20 + b

-21 = b

The equation is y = 5x - 21.

Two similar solids have a scale factor of 3:4. What is the ratio of their areas?


27:64


9:16


6:8


3:4

Answers

9:16

area =scale factor squared

PLEASE HELP!
Solve the quadratic equations. Show all steps
[tex]1.) 2(x+1)^2=32\\2.)3(x-4)^2=30[/tex]

Answers

Answer:

1.)x=-5, x=3

2.)√10+4, x=√10+4

Step-by-step explanation:

1.) 2(x+1)^2=32

(x+1)^2=16

x+1=±4

x=1=-4

x=1=4

x=-5, x=3

2.)3(x-4)^2=30

(x-4)^2=10

x-4=±√10

x-4=-√10

x-4=√10

x=-√10+4, x=√10+4

Shelley's Cupcakes recently sold 8 cupcakes, of which 4 were coconut cupcakes. Considering this data, how many of the next 20 cupcakes sold would you expect to be coconut cupcakes?

Answers

Answer:

10 coconut cupcakes.

Step-by-step explanation:

can someone help me please? and if its okay can you show the step by step explanation.​

Answers

These are literal equations- that means you solve literally for the numbers.
1. t=d/r
2. m=e/c^2
3. C= -P/R
And so on... You just divide/subtract the letters to the other side

Bella surveyed the first 15 students in the lunch line.
Is this sample of the students in the school likely to be representative?
yes
no

Answers

Answer:

No

Step-by-step explanation:

Only people in the lunch line got surveyed, that on it's own is biased.

Only 15 people out of the entire school.

Only the first people got surveyed.

Josh is tiling his swimming pool. What information does Josh need?
A.
the area of a tile and the area of his swimming pool
B.
the volume of a tile and the volume of his swimming pool
C.
the perimeter of a tile and the perimeter of his swimming pool

Answers

He née the perimeter of the tile and the perimeter of the swimming pool

Need help What is 6/10 in simplest form

Answers

Answer:

3/5

Step-by-step explanation:

35.

Step-by-step explanation:

The simplest form of 610 is 35.

Estimate the value of the integral from negative 2 to 4 of x cubed, dx by using the Trapezoidal Rule with n = 3. (5 points)
252
128
63
72

Answers

Answer:

Good luck on your test guys, Did a lil digging for this one

Step-by-step explanation:

Please help me with 1,2,3,4,5,6,7,8,9 tell me how u get it and the answer please I really need help

Answers

Answer:

Step-by-step explanation:

two simple questions

Answers

Oh i love these x=4,y=9
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