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morpeh [17]
3 years ago
13

Maths I’ll give the brainiest

Mathematics
1 answer:
Helga [31]3 years ago
4 0

Answer:

x= 4/5

y= 2/5

Step-by-step explanation:

3x-y=2

2x+y=5

solve them so that they are in y=mx+b form

3x-y-3x=2-3x

-y= -3x+2

y= 3x -2

2x+y -2x= 2-2x

y= -2x+2

now use the substitution method to get your points

3x -2= -2x+2

3x -2+2= -2x+2+2

3x= -2x+4

3x+2x= -2x+4+2x

5x=4

x= 4/5

now substitute x into any of the 2 equations

y= 3x -2

y= 3(4/5) -2

y= 2 2/5 -2

y= 2/5

Hope this helped!

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~ H E L P ! ! !~
alex41 [277]

Answer:

5 pounds Banana , and five pound apples

the price of banana=0.8*5=4 dollars

the price of apples = 1.4*5=7 dollars

4+7=11 dollars

no Janice's mother did not give her enough money, she still needs one dollar.

( short one dollar)

8 0
3 years ago
Ben and his three friends were ordering pizza. They could spend at most $26. If a large
lutik1710 [3]

Answer:

6 toppings

Step-by-step explanation:

The t in this equation represents the amount of toppings.

22 + 0.65t = 26

-22 -22

0.65t = 4

0.65t/0.65 = 4/0.65

t = 6

They could get 6 toppings and the total would be $25.90.

6 0
3 years ago
Radio tower had a special on rechargeable batteries. It sold AA for $1 and AAA for $0.75. It sold 42 batteries on a single day a
PIT_PIT [208]
AA = $1
AAA= $0.75

AA + AAA = 42

$1AA + $0.75AAA= $37

AA + AAA = 42
AA + AAA-AAA= 42- AAA
AA = 42- AAA

$1(42- AAA) + $0.75AAA= $37
$42 - AAA +0.75AAA = $37
$42 -0.25AAA= $37
$42-$42 -0.25AAA= $37 -$42
-0.25AAA= -5
-0.25AAA/-0.25 = -5/-0.25
AAA= 20

AA + AAA= 42
AA + 20 = 42
AA +20 -20 = 42-20
AA= 22

Check
$1AA + $0.75AAA= $37
$1(22)+ $0.75(20)= $37
$22 + $15 =$37
$37 = $37


5 0
3 years ago
A piece of metal has density of 11.3g/cm
djverab [1.8K]
The mass should be 75.71 grams
To find density is D = M / V
So you would have to multiply the volume by the density
5 0
3 years ago
Tessa is in the track team. For practice and exercise, she runs 2.25 miles each day. At the end of 14 days, how many total miles
lidiya [134]
2.25 miles in 1 day

1day=2.25mi

14days=x miles

 1day           14days
_______ =  ________
 2.25mi          x mi

Cross multiply
1x=31.5
divide both sides by 1
x=31.5miles

Answer=31.5miles
5 0
3 years ago
Read 2 more answers
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