Mathematics Middle School

Solve each system of equations
1.) 2x- 5y = 7

3x - y = -9

Answers

Answer 1

Answer:

x = -4, y = -3

Step-by-step explanation:

Answer 2
X = -4 y= -3
Explanation: hope this helps

* please mark Brainliest

Related Questions

for spirit week at whoville Middle School students were encouraged to wear the school colors of burgundy and gold of the 1,500 students,1200 students wore burgundy wild 300 students were gold.
what percent of the total numbers of students wore gold?

Answers

Answer:

20%

Step-by-step explanation:

Santa read 13 books to children at the mall. Four - fifths of the books were about the North Pole. How many books were about the North Pole? A. 10 2/5

B. 52/65

C. 5 2/10

D. 7 12/2

Answers

Can you explain the question more I can’t really tell what the options or the answer really is

Answer:

10 2/5

Step-by-step explanation:

13 divided by 4/5=10 2/5 ☺

can somebody answer this pls

Answers

Answer:

i think its 12n + 6 sorry if its wrong

Step-by-step explanation:

HElp!!The ratio of girls to boys in the photography club is 7 to 3. Which ratio could represent the members of the photography club?

Answers

Answer:

C) 21 girls : 9 boys

Step-by-step explanation:

You just have to compare the ratio you're given to the answers and see if the ratios from the answers match up to the ratio you were given. The reason C is the answer is because if you divide by 3 in the ration, it is the same as the ratio you were given, 7:3

Answer:

21 girls 9 boy because you x it by 3

Step-by-step explanation:

help help pleaseeeeeeeeeee

Answers

18 should be correct

PLEASE HELP! FINALS! - Shawn bought a 10-pound turkey to serve for Thanksgiving. He plans to serve each adult 2/5 of a pound.

Complete each of the 2 activities for this task.

Activity 1 of 2 :
Part A: Write an equation to represent the number of adult servings, x, Shawn can get from the 10 - pound turkey. Use your equation, x, Shawn can get from the 10 - pound turkey. Use your equation to determine the number of adult servings.

Activity 2 of 2 :
Part B: The price of a turkey is $1.36 per pound. Write an equation that can be used to determine the total cost, c, for a turkey that weighs *p* pounds. Then, find the cost of Shawn's turkey.

Answers

Answer:

Activity 1 of 2 : 25 adult servings.

Activity 2 of 2 : $13.6

Step-by-step explanation:

Activity 1 of 2 :

2/5 of a pound per adult serving.

10 pounds of turkey.

0.4 ÷ 10 = 25

2/5 ÷ 10 = 25

25 adult servings.

^ same equation

Activity 2 of 2 :

$1.36 per pound.

10 pounds.

1.36 * 10 = 13.6

$13.6

antonio wrote the equation 80.4 ➗ d = 0.0804. What value of d makes the equation true? *

A 100
B 1,000
C 10,000
D 10

Answers

Answer:

i believe its 1,000

Step-by-step explanation:

HOPE THIS HELPED PLS GIVE ME BRAINILEST

1,000 because when you multiple 80.4 by 1000 it equals 0.0804☺️ Hope this helps, I seen your other comments as you needed the explanation!

I need help finding x!

Please show work for both!

Answers

1. Answer x=-5
You would subtract 25 from each side of the equal sign, taking 25 away from 40 and 25 away from 25, isolating the x. So you would then have -3x=15. You would then divide each side by -3, and getting x=-5

Answer:

1. -5

2. -2

Step-by-step explanation:

1. 25-3x=40

-25        -25

-3x=15

/-3   /-3

x=-5

2. 1/3(x-10)=-4

       1/3x=-4

        x3   x3

      x-10=-12

        +10 +10

           x=-2

Match the coordinates with the quadrants they lie in. || Quadrant I || Quadrant II || Quadrant III || Quadrant IV ||

Answers

Where's the photo?

There is no photo

The table below shows the federal income tax rate for wages earned for married couples.

Annual Income (Wages) Income Tax Rate
$0 to $18,150 10%
$18,151 to $73,000 15%
$73,001 to $148,850 25%
$148,851 to $226,850 28%
$226,851 to $405,100 33%
$405,101 to $457,600 35%
Over $457,600 39.6%

The Rodriguez Family earned $115,500 last year. How much did they pay in income taxes?
A. $28,875
B. $38,775
C. $25,726
D. $29,225

Answers

Answer:

A

Step-by-step explanation:

25% of 115,000 is 28,875

Hope this helps!

The answer us vm A or C

Solve this inequality for x: -46 - 8x > 22

A. X -8.5
D. X > 8.5

Answers

The answer would be “X < -8.5”
Have a good day:)

The right triangle on the right is a scaled copy of the right triangle on the left. Identify the scale factor. Express your answer in simplest form.

Need the answer ASAP

Answers

Answer:

A.

Step-by-step explanation:

the scale is 3.8

hope this helps and sorry if i’m wrong

Someone please helps me do this math

Answers

Answer:

47.06 + d = 150

Step-by-step explanation:

So she's planning to save 150 in total. She already saved 12.64. Her grandmother gave her three times as much as that (12.64 * 3=37.92). so an equation would be 12.64 + d + 37.92 - 3.50 = 150

(where d represents the amt. of money left she needs to earn.) If we add up 12.64 and 37.92, we get 50.56 - 3.50 + d = 150.

50.56 - 3.50 = 47.06, so now the equation is 47.06 + d = 150

Subtract: 150 - 47.06 = 102.94, so d = 102.94

It’s d trust me it has to be through use of elemjnation

Please help, I can't think today.

Answers

It’s the blue one in yellow one

I need help with this because i dont know this please send help....

Answers

Answer:

Think about what number you got multiply 7 to get 28. Once you do, multiply the other numbers by that digit

Step-by-step explanation:

5- 20
10- 40
12- 48
Those are the answers. Hope this helps!!

If there are 42 boys and 56 girls in a room, fill out all of the possible ratios of boys to girls that could be made.

Answers

42:56 should be the answer 100%

Answer:

84 112,126 168, 168 224, 210 280

Step-by-step explanation:

42 ×2=84

56×2=112

42×3=126

56×3=168

42×4=168

56×4=224

42×5=210

56×5=280

42 boys. 56 girls

Helppppppp pls........

Answers

Answer:

the second option is correct

Step-by-step explanation:

the 2nd one because 1 white block equals to +1 and the x rod is basically positive. Positives are greater than negatives.

therfore x > -4

PLZZZ HELPPPPPPPPPPPPP

Answers

Answer:

0.35

1.75

18

Step-by-step explanation:

[tex]1.4/4=(14/4)/10=3.5/10=0.35\\\\7/4=1.75\\7.2/4=18[/tex]

Answer:

0.35

Step-by-step explanation:

1.4 ÷ 4 = 0.35

Hope this helped

A company that makes boxes finds that 3 out of 20 boxes are damaged. What percentage of boxes are damaged?
Group of answer choices

17%

15%

28%

19%
-----------------------------------------
Jared has 18 white socks, 8 black socks, and 14 gray socks. What percentage of Jared's socks are white or gray?
Group of answer choices

80%

45%

69%

35%
-----------------------------------------
The sales price for a sweater was $21. The sweater was 40% off. What was the original price of the sweater?
Group of answer choices

$61

$42

$35

$25

-----------------------------------------
Most dogs fail to become service dogs. In a recent training class, only 7 of the 15 dogs were certified as service dogs. What percent of dogs became certified service dogs? Round to the nearest whole number.

ONLY PUT THE NUMBER!
-----------------------------------------
If 44% of the students in Mrs. Rutherford's class like chocolate ice cream, then how many students are in Mrs. Rutherford's class if 11 like chocolate ice cream

ONLY PUT THE NUMBER!

Answers

Answer:

15% of the boxes are damaged

Step-by-step explanation:

ust simply divide

3/20= .15 or 15%

15% of the boxes are damaged

15%
35%
$25
47%
25
sorry if it’s wrong i tried‍♀️

10 points!! plzzzzzzz helpppp :(
find the letters ( K,K,T )

Answers

Answer:

dude u lie it says 5 points

Step-by-step explanation:

Answer:

1) k=90

2) k=135

3) s= 115 t=30 r=35

Which statement is true about the graphs shown?

Answers

pretty sure the answer is c ,, they both look very much proportional
The answer is d, the line should go through the origin if it was proportional

please help I really don't understand this and I really wanna watch a show with my family:) BRAINLIEST IF YOU HELP ME

Answers

Answer:

here is number 1!!..you can use the website Desmos it graphs it for you

Answer:

here is number 1!!..you can use the website Desmos it graphs it for you

Step-by-step explanation:

Annie was eating Starburst candy. She has eaten 34% red, 1/5 yellow, 3/10 pink, and the rest were orange. What color had the most candies?

Answers

Answer

I belive It's red34%

The answer is red.
1/5 into a percent is 20% and 3/10 is 30%. This makes orange only 16%, so the answer is red.

please


An art class is making a mural for their school which has a triangle drawn in the middle. The length of the bottom of the triangle is x. Another side is 14 more than times the length of the bottom of the triangle. The last side is 15 more than the bottom of the triangle. Write and simplify an expression for the perimeter of the triangle.


What is the expression for the perimeter of the​ triangle?

Answers

Perimeter = x + (x + 14) + (x + 15)
X is the bottom side, x + 14 is the other side, and x + 15 is the third side.

Which expression is equivalent to 5(3 + 4k ) + 3(4 +k )?

27 +5k
3 + 5k
27 + 23k
3 + 23k

Answers

Answer:

27+23K

Step-by-step explanation:

Use distributive property

15+20k+12+3K

Now combine like terms

23K+27

thats your answer

its gonna be C you need to multiply 5•3=15and then 5•4k=20k and then multiple 3•4=12 and 3•k= 3k and then you want to combine like terms being add the k's and the regular numbers making it 27+23k

enna is taking out a $1,200 student loan to pay for some college expenses. She is considering two different loan options that are described in the table below.


College Loan Options
Option Annual Compound
Interest Rate Repayment Time
A 4.5% APR 5 years
B 3.8% APR 4 years

How much more will it cost Jenna to repay option A than option B?

Answers

Answer:

for A she pay altogether $1470

for B she pay altogether $1382.4

A puppy weighs 3 lbs at 10% of its adult weight. How many lbs will the puppy be when it is 60% of its weight?

Answers

Answer:

18lbs

Step-by-step explanation:

18 since 3 = 10% & 10%  = 1/6 of 60% which means 3 * 6 = 18

The water level of a river in the city of Melbourne changed by − 414 feet over a 3-month period. Which of these describes the average monthly change in the water level of the river?




On an average, the water level decreased by 114 feet per month.


On an average, the water level decreased by 1512 feet per month.


On an average, the water level decreased by 1234 feet per month.


On an average, the water level decreased by 1112 feet per month.

Answers

2................ 2................ 2................ 5666 fert pet day
It’s A y’all are gonna have her get the question wrong ;-;

PLEASE HELP 30 POINTS!!!

Answers

I think it’s c sorry if I get it wrong

Answer:c

Step-by-step explanation:

PLZ ANSWER ASAP WILL MAKE BRAINLIEST FOR BEST ANSWER AND EXPLAIN YOUR ANSWER
Three friends participated in a fund-raising project. Dexter collected 2/5 of the total amount. Carter collected $272 more than Jack. Jack collected $764 how much did the three of them collect altogether?

There were 1,265 people at a boat show. After 1/5 of the adults and 1/3 of the children left, there was an equal number of children and adults at the show. how many people left the show?

Answers

Answer:

hi

Step-by-step explanation:

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