MATHEMATICS HIGH SCHOOL

5x+2y=7
7x+2y=5 i need it right

Answers

Answer 1
Answer: I solved it in the image below. 
Answer 2
Answer: 5x+2y=7 7x-2y=5 its subtract not add

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Write the equation in standard form 6x=y+3

Answers

The standard form of this equation is 6x - y = 3. Standard form is Ax + By = C, where A and B are the coefficients for x and y, and C is the number without a variable attached, or the constant. We just need to do a bit of algebra to get the equation in standard form.

6x = y + 3   Given
6x - y = 3   Subtract y from both sides

Hope this helps!
standard form  is ax+by=c
6x=y+3
lets move the y over to left side
minus y from both sides
6x-y=3
 

What is 2 3/5 minus 1 1/7

Answers

Exact form: 51/35


Mixed Number Form: 
1 16/35

H3Y was correct.
2 3/5-(1 1/7)= 51/35
= 1 16/35

Kyle asks his friend Jane to guess his age and his grandmother’s age. Kyle says his grandmother is not more than 80 years old. He says his grandmother’s age is, at most, 3 years less than 3 times his own age. Jane writes this system of inequalities to represent k, Kyle’s age, and g, Kyle’s grandmother’s age. Inequality 1: g > 80 Inequality 2: g ≤ 3k – 3 Which inequality did Jane write incorrectly, and how could it be corrected?

Answers

not more tha 80 means
g is less than or equal to 80 or
g<80

grandmothers age is at most, 3 years less than 3 tmes his age
g is equal to or less than 3 years less than 3 times k
g<-3+3k

we have
g<80 and
g<3k-3

the first one is incorerct, it is written as g>80 in the question, but it should be g<80

Answer:

LETTER ANSWERR IS A.

Step-by-step explanation:

A square has a perimeter of 12 cm. What is its area?9 cm 2
18 cm 2
36 cm 2
144 cm 2

Answers

Hey there, the formula is A=a², and P=4a. Let's solve for a, A=1/16p²=1/16*12²=9cm², Therefore, the answer is 9 cm 2

I need help

what is the function of this graph i cant figure it out

Answers

if you have covered function tranformations

is an exponential function, likely something like y =2^x  but shifted upwards by 3 units and with a coefficient multiplying "x" something like "2"

so... try graphing in your calculator y = 2^(2x)+3

Is .01 less than .07

Answers

Yes, 0.01 is father from 1 in comparison to 0.07

No, .07 would represent a bigger number if it were coins it would be .06 more pennies. The only time .01 would be greater then .07 is if it were negative
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Kathie was buying materials for a quilt. She bought 4.5 yards of padding, 7.5 yards of cotton, and 4.95 yards of red trim. She also bought some black trim and some white trim. She bought 4 times as much black trim as she did red trim and 3 times as much white trim as red trim. How many yards of trim did Kathie buy for her quilt? A. the amount of black trim purchased B. the total amount of padding, cotton, and trim that Kathie bought C. the difference between the amount of padding and the amount of cotton that Kathie bought