Answer:
-10
Step-by-step explanation:
Hope this helped
solve system by elimination
6.
2x + 5y = 14
4x + 2 y = -4
Answer:
x=−3 and y=4
Step-by-step explanation:
Multiply the first equation by -2,and multiply the second equation by 1.
−2(2x+5y=14)
1(4x+2y=−4)
Becomes:
−4x−10y=−28
4x+2y=−4
Add these equations to eliminate x:
−8y=−32
Then solve−8y=−32for y:
−8y=−32
−8y
−8
=
−32
−8
(Divide both sides by -8)
y=4
Now that we've found y let's plug it back in to solve for x.
Write down an original equation:
2x+5y=14
Substitute4foryin2x+5y=14:
2x+(5)(4)=14
2x+20=14(Simplify both sides of the equation)
2x+20+−20=14+−20(Add -20 to both sides)
2x=−6
2x
2
=
−6
2
(Divide both sides by 2)
x=−3
A retailer spends $25 on a new video game. They have to pay 7.5% sales tax on
this game. How much is the tax? *
Answer:
The tax is $1.88
Step-by-step explanation:
7.5% = 0.075 (divide by 100)
0.075 * $25 = 1.875 or $1.88
y=7
x=3y-4
HELPPP!!! ASAP
Answer:
see below
Step-by-step explanation:
x = 3 × 7 - 4
X = 21 - 4
X = 17 simply put the value of y
Answer:
x=17
Step-by-step explanation:
x=3(7)-4
x=21-4
x=17
Which equation is graphed?
3(y+2)=30 one solution
What is another way of writing the following expression?
3(7 + 4)
A (3 × 7) + (3 × 4)
B (3 + 7) × (3 + 4)
C 3 × 7 × 4
D 7(3 + 4)
Answer:
A
Step-by-step explanation:
3 times 7 = 21 3 times 4 = 12
21+12=33
Remember the addition sign must be included for the equation to be valid.
{y=2x
{x=-y+6
please help i have a 27 in this class please help
Answer:
x = 2
Step-by-step explanation:
y=2x so
x=-2x+6
add 2x to both sides
3x=6
divide both sides by 3
x=2
A metal cube has a volume of 27 cm'. It is painted on all its faces. Find the total area of
the faces that are coated with paint.
Answer:
Area = 54 cm
Step-by-step explanation:
Using the formulas
A=6a2
V=a3
Solving forA
A=6V⅔=6·27⅔≈54
you add 2 numbers between 10 and 100 you also subtract them the add answer is at least 30 more than the subtract answer what are they
Answer:So I calculate 8437−6526=1911. Then I multiply it by minus one to get 6526−8437, which is what I wanted.
Step-by-step explanation:
regular price of a ping pong table is $255 the discount is 40% off regular price what is the price now?
Answer:
153
Step-by-step explanation:
$255 multiplied by 40% gives the product. You then subtract 102 from 255, giving you the final answer.
Substitute each variable to determine whether the inequality statement is true or false 16>f if f=17
Answer: The statement is false.
Step-by-step explanation:
We have the statement:
(16 > f) if f = 17
In this case:
f = 17 is the hypothesis.
16 > f is the conclusion.
Then assuming that the hypothesis is true, we need to check if the conclusion is also true.
Then:
16 > f means "16 is larger than f"
Now let's assume that the hypothesis is true, then f = 17, and we can replace this in the inequality above, now we get:
16 > 17
This says "16 is larger than 17"
This is clearly false, then when the hypothesis is true, the conclusion is false.
This means that the statement:
" 16>f if f=17 "
is false.
plz help The link under is the question I need help today
Answer:
the fourth one: 36.25
Step-by-step explanation:
the 3 in 20.342 is in the tenths place.
0.3*100=30
the three in 36.25 is in the tens place
what can you multiply to get 196 but add to get 53.
THIS IS SO HARD ILL CROWN U BRANLIEST IF U GET IT CORRECT
Which shows the solution of the combined inequality?
−1≤2−j<−5
Number line ranging from negative six to zero with a line beginning with an open point at negative five and ending with a closed point at negative one
Number line ranging from negative six to zero with a line beginning with a closed point at negative five and ending with an open point at negative one
Number line ranging from zero to six with a line beginning with a closed point at one and ending with an open point at five
no solution
Answer:
Its B
Step-by-step explanation:
My classmate told me and I got it right
Answer: no solution
Step-by-step explanation:
took the test
Given this portion of an input-output table for a linear equation (that is a
function), find the slope and the y-intercept. Select the answer below that
represents your equation:
Answer:
y = 1/2x + 7
Step-by-step explanation:
Find m∠CBD.
i’ll give a brainist
Answer:
<M<CBD=M<CDB=34° BASE ANGLE OF ISOSCELES TRIANGLE
Please help me with this! I will mark as brainliest!!!
Find the value of x
PIC IS BELOW
Answer:
a. 5
Step-by-step explanation:
1.k + 9c use k = 5 and c = -9*
Step-by-step explanation:
Here
k = 5, c = - 9
Then.
k + 9c
= 5 + 9 * (-9)
= 5 - 81
= -76
Hope it will help :)
how do you subtract a power from a power
Answer:
Am not sure if u subtract it cuz
if x^2^2 u multiply instead of subtracting & x = 4
It’s in division where u subtract and if it’s same base like x^2^2 •x^3 then u add & u get 4+3 = x^7
Step-by-step explanation:
plz help I will give brainliest
Miss Robin distributed a bag of skittles to her students she gave each student five skittles then ate the 8 that remained in the bag if they were only originally 143 skittles in the bag how many students does she have
Answer:
27
Step-by-step explanation:
First, subtract 8 from 143 which would give you 135. You then divide 135 by 5 and you get 27
answer it plz it ain't hard so
Answer:
(4,5)
Step-by-step explanation:
If it's not hard then why do you need help????
Answer:
C). (4,5)
Step-by-step explanation:
Basically crawl before you walk, x axis then y axis.
990*500/600+51-100+10
What is the answer
Answer:786?
Step-by-step explanation:
Answer: if that is supposed to be a multiplication sign its 786
Step-by-step explanation:
−2x=x^2 minus 6,
Rewrite the equation by completing the square. please answer
Answer:
[tex](x+1)^{2} -5[/tex]
Step-by-step explanation:
[tex]-2x=x^{2} -6 \\x^{2} +2x-6\\(\frac{b}{2}) ^{2} =(\frac{2}{2}) ^{2} =1^{2} =1\\so, (x^{2} +2x+1)-6+1\\ x^{2} +2x+1=(x+1)^{2} \\-6+1=5\\(x+1)^{2} -5[/tex]
Sorry it took so long
i need help w/ math due asap plzz
Answer:
The answer is D
Step-by-step explanation:
You multiply by 2 19 x 2 = 38 38 x 2 = 76 76 x 2 = 152
then 152 x 2 = D 304
I need help with this
Answer:
Nice pfp- Also, Elena would know because they have identical slopes and y intercepts, The Equation would give you 36x + 18 = 36 x +18, Basically they are corresponding lines.
hope that helped. :p
Tyler orders a meal that was $15
If the tax rate is 6.6%, how much will the sales tax be on Tyler’s meal?
Answer:
His total will be $15.99, so the sales tax is $0.99
Step-by-step explanation:
15 increase 6.6% =
15 × (1 + 6.6%) = 15 × (1 + 0.066) = 15.99
What is the answer to (1/2)x-1-4
Answer: X = 2
Step-by-step explanation:
topic:maths - algebra pls help ! :-(
Answer:
24
Step-by-step explanation:
Answer:24
Step-by-step explanation:
9(4) + 4(-3)
36 + -12
36 - 12 = 24