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nekit [7.7K]
3 years ago
13

Please help me I can’t figure it out NO LINKS LINKS=REPORT

Mathematics
2 answers:
shusha [124]3 years ago
7 0

Answer:

x = 3

y = 8

Step-by-step explanation:

ok we will substitute

y = x + 5

into the second equation

4x + y = 20

4x + (x + 5) = 20

5x + 5 = 20

5x = 15

x = 3

y = x + 5 = 3 + 5 = 8

Yuliya22 [10]3 years ago
3 0

Answer:

4(3)+y=20

Step-by-step explanation:

4*3=12

Y= 3+5

3+5=8

12+8=20

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Please help!! Algebra 1
Lady_Fox [76]

Answer:

v = 400000(2^\wedge d)

Step-by-step explanation:

Given

Initial\ Value = \$400000

Rate = doubles per decade

Required

Determine the equation of the function

The information given shows that the function is exponential and will be calculated using:

v = ab^d

Where:

a = Initial Value = 400000

b = rate = 2

d = number of decades

v = the current value of the home

So, we have:

v = 400000* 2^\wedge d

v = 400000(2^\wedge d)

7 0
3 years ago
Need help getting the answer to the question below.
Papessa [141]

Answer:

.0065

Step-by-step explanation:

You move the decimal backwards 3 times

7 0
3 years ago
Read 2 more answers
Sally wants to purchase some school supplies. Notebooks cost $3 each and Pens cost $2 each. Sally is not allowed to purchase mor
n200080 [17]

Answer:

4n and 5p  

Step-by-step explanation:

Because if it the cost of each your mulitplying and because you wanting to just define the variable p for pen and n for notebook all a variable is a letter than let you know what something is for using in math later

7 0
3 years ago
It takes Jenny 1/4 hour to ride her bike 1/2 mile. What is her unit rate of travel in miles per hour?
Dovator [93]

Answer:

2 mph

Step-by-step explanation:

Since Jenny can do 1/2 of a mile in 1/4th of an hour, she can do twice as many miles, which is 1/2

4 0
3 years ago
Landen spent L hours at the beach last weekend. Matéo spent 15% fewer hours at the beach than Landen did.
andre [41]

Answer:

L(1-0.15)

L-(15/100)L

Step-by-step explanation:

we  know that

100%-15%=85%

85%=85/100=0.85

so

The number of hours that Mateo spent at the beach last week is equal to the hours that landen spent at the beach (L) multiplied by 0.85

The linear equation that represent this situation is

0.85L  

<u><em>Equivalent expressions are</em></u>

1) L(1-0.15)

Because

Applying distributive property

L(1-0.15)=L-0.15L

Combine like terms

L-0.15L=0.85L

2) L-(15/100)L

because

15/100=0.15

substitute

L-(15/100)L=L-(0.15)L=0.85L

8 0
3 years ago
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