MATHEMATICS HIGH SCHOOL

Solve each system by any method you choose. Which is the x-value of the solution?7x + 4y + 7 = 2x + 6y + 5 + 4x

-2x + 7y -1 = 13y + 2 - 5x - 10

Answers

Answer 1
Answer: Okay, I have it, but it's gonna take a while to explain xD
Basically, they're simultaneous equations. I'll do it quickly so I don't have to type as much.
The first equation can be simplified to 3x+2y=2
The second would be 3x-6y=-7
So, you take them away from each other.

3x+2y=2 -
3x-6y=-7
= 8y=9
So y=1.125

Now you have the hard bit out of the way, you can work out x by putting y into one of the equations :)

3x+ (2X1.125) = 2
3x+2.25 = 2
3x = -0.25
So x = 0.08333... (Can't do a recurring sign on my phone xD)

Related Questions

The diagonals of a parallelogram QRST, TR And QS, Intersect at point U, if RS = 10 , ST=12,And RU=9.5 , Find The Perimeter Of The parallelogram QRST.A. 39 B. 44 C. 88 D.100
The price of a pair of shoes is $45.90. The sales-tax rate is 5 percent. How much sales tax do you need to pay?a)0.30 b)2.30 c)23 d)48.20
Perdita goes to the fruit market with $9 to buy avocadoes. Each avocado costs $2. Write and solve an inequality to find the greatest number of avocadoes Perdita can buy
What is 8,450 ROUND. TO THE NEAREST THOUSAND
I do not understand how to get the answer

What should I pick ?Joe measured a brick using a ruler with centimeters and got 9 cm. He then measured the same brick using a ruler with millimeters and got 90 mm. Are these measurements equivalent? Why or why not?

A. Yes, because 10 cm is the same as 1 mm.
B. Yes, because 1 cm is the same as 10 mm.
C. No, because 2 cm is not the same as 20 mm.
D. No, because 1 cm is not the same as 1 mm.

Answers

Answer:

B

Step-by-step explanation:

because 1 cm is the same as 10mm

Answer:

B

Step-by-step explanation:

the answer is B because one centimeter is the same as a 10 mm

Jermaine buys T-shirts for $6 each and marks up the price by 45%. How much profit does Jermaine make for each T-shirt sold?

Answers

Answer:

$2.70

Step-by-step explanation:

Cost price = $6

Mark up percentage = 45%

Mark up amount = 45% × $6

                           = 0.45 × $6

                           = $2.70

Selling price = Mark up + cost price

                     = $2.70 + $6

                     = $8.70

Jermaine sells the shirts for $8.70 and makes a profit of $2.70.

Answer:

$2.70

Step-by-step explanation:

6*45% =2.70

• Buyers are charged a shipping fee of $4.75 for each scarf order.Which expression can you use to find the total price of a scarf order?
48s - 4.75
4.758 - 48
48s + 4.75
4.75s + 48
HELP NOW PLSSS I BEG YOU

Answers

Answer: 48s + 4.75

Step-by-step explanation:

Each scarf is sold for $48 which is why the total price of buying s scarves is 48s or 48*s.

Assuming a single order of scarves can contain more than one scarf then that means that for s scarves, the shipping fee will remain the same at $4.75.

Should this be the case then the expression for an order of scarves will be;

= 48s + 4.75

This shows the price of ordering s number of scarves plus the shipping cost of $4.75 for the order comprising s number of scarves.

Answer:

48s + 4.75

is the answer i did the quiz and got it correct

Over a two-hour time period, a snail moved 108 inches. How far is this in yards?

Answers

In two-hour time period, a snail moved 3 yards.

Given that, over a two-hour time period, a snail moved 108 inches.

Metric Conversion refers to the conversion of the given units to desired units for any quantity to be measured.

We know that, 1 yard = 36 inches

Here, in yards = 108/36

= 3 yards

Therefore, in two-hour time period, a snail moved 3 yards.

To learn more about the metric conversion visit:

brainly.com/question/21244256.

#SPJ6
the snail moved 108 inches
108/36=3 yards
as 1 yard=36 in

In the figure below, the two triangular faces of the prism are fight triangles with sides of length 3, 4, and 5. The other three faces are rectangles. What is the surface area of the prism. 72 sq. units 96 sq. units 84 sq. units 108 sq. units

Answers

The surface area of the prism will be given by:
SA=(surface area of triangles)+(surface area of rectangles)
surface area of triangles=2(1/2*3*4)=12 sq. units

area rectangles
the length of the hypotenuse will be:
c²=a²+b²
c=√(3²+4²)
c=√25
c=5
area=(3*5)+(4*5)+(5*5)=60

Total area=60+12=72 sq. units

Answer: 72 sq. units

Math help!!!

Explain when is a rational expression restricted.

Answers

restricted values are when you get things that aren't allowed
the 2 main ones are

1.having a negative result under the squaer root sign

2. dividing by zero


example
√(x-3)=y
x cannot be any number less than 3

example the equation 3/x, 0 is  a restricted value for x
3/(x+2), -2 is a restricted value for x
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The square of a certain negative number is equal to 5 more than one half of the number what is the number
Put it into greatest and least