Answer:x+42+3x = 90
Combine like terms:
3x+x = 4x
42+4x = 90
Subtract 42 to both sides
90-42 = 48
Divide 4 by 48
48/4 = 12
X = 12
100% right
Step-by-step explanation:
1 A home improvement store purchases $300 worth of materials. They charge a 55% markup. For how much will the materials be sold?
URGENT HELP WANTED FAST!!! DUD
Answer:
N
P
J
B
A
I
L
E
G
H
O
M
C
D
K
A
Step-by-step explanation:
simple addition subtraction,in terms of a alone then b them the number
Tom has 50 coins consisting of quarters and dimes. The combined value of coins is $8.30. How many dimes and quarters does Tom have
dimes
quarters
Answer:
32 quarters and 3 dimes
Step-by-step explanation:
you could do 4 x 8 to get to the 8 dollars so 4 x 8 = 32 so that would be 32 quarters now you got 30 cents left that will be the dimes so 3 dimes
Hayley loves to shop for make up. She went to her favorite store and bought eye shadow for $5.99, 2 bottles of nailpolish for $7.50 each and a tube of mascara for $8.50. She had a 20% discount coupon. Create and solve an equation to determine how much was her purchase after the discount was applied.
Which point is on the graph of the equation y = -3x + 4?
A. (-3, 4)
B. (2, 2)
C. (1, 1)
D. (0, -4)
Answer:
The points that fits the equation would be option D.
pls help need it ASAP
will give brainlist
:)
Step-by-step explanation:
Given
5x + 2y = 16 .....i)
x + 2y = 4 .....ii)
Subtracting equation I) and ii) we get
5x + 2y = 16
x + 2y = 4
- - -
4x = 12
x = 3
Putting x = 3 in equation ii)
3 + 2y = 4
2y = 4 - 3
y = 1/2
x =3 and y = 1/2
Hope it helps :)
Answer:
1) x=2 y=3 2) x=2 y=1
Step-by-step explanation:
Please help me ASAP
find the value of x in each triangle with the given angle measures
Answer:
10 - 104
11 - 25
12 - 64
13 - 109
14 - 33
15 - 90
Step-by-step explanation:
For the first 3 triangles u must add the two angles and minus it from 180
Q number 13 do the same thing then minus the number u got by 180
Q number 14 .... 66 - 180 = 33
Q number 15 it is a right angle so it is 90
Are these triangles congruent by ASA (Angle-Side-Angle)? *
yes
or
No
Answer:
Yes, they just flipped the second one around.
Step-by-step explanation:
Explain why the product of a non-0 rational number and an irrational number is irrational?
Answer:
An irrational number is a number that can not be written as the quotient of two integer numbers.
Then if we have:
A = a rational number
B = a irrational number.
Then we can write:
A = x/y
Then the product of A and B can be written as:
A*B = (x/y)*B
Now, let's assume that this product is a rational number, then the product can be written as the quotient between two integer numbers.
(x/y)*B = (m/n)
If we isolate B, we get:
B = (m/n)*(y/x)
We can rewrite this as:
B = (m*y)/(n*x)
Where m, n, y, and x are integer numbers, then:
m*y is an integer
n*x is an integer.
Then B can be written as the quotient of two integer numbers, but this contradicts the initial hypothesis where we assumed that B was an irrational number.
Then the product of an irrational number and a rational number different than zero is always an irrational number.
We need to add the fact that the rational number is different than zero because if:
B is an irrational number
And we multiply it by zero, we get:
B*0 = 0
Then the product of an irrational number and zero is zero, which is a rational number.
In WXY, w=130 inches, x=270 inches and y =190 inches. Find the area of WXY to the nearest square inch
Answer:
11304
Step-by-step explanation:
Delta math
What is the area of this parallelogram?
A. 28 m²
B. 56 m²
C. 84 m²
D. 120 m²
PLS HELP I'LL GIVE BRAINLYIST
Answer:
84m^2 or C
Step-by-step explanation:
area = base * height
= 12 * 7 = 84
Answer:
8 + 4 = 12 x 7 = 84m
A line with a slope of 3 passes through the point (-1, 2).
Write an equation for this line in point-slope form.
Answer:
y-2=3(x+1)
Step-by-step explanation:
y-y1=m(x-x1)
y-2=3(x-(-1))
y-2=3(x+1)
Andy took out a 5 year loan at 12% interest rate to pay for a trip to Spain. If he ended up paying $4937.50 in interest, how much was the trip?
Answer:
Trip cost $8229.17
Step-by-step explanation:
I = PRT I = 4937.50 R = .12 T = 5 P = amt for the trip
4937.5 = .12(5)P
4937.5 = .6P
P = 4937.5/.6 = $8229.17
Answer:$8229.17
Step-by-step explanation:
Five less than twice the value of a number is equal to three times the quantity of four more than ½ the number. What is the number?
Step-by-step explanation:
(2x-5) = 3(4+x/2) then solve for x.
2x-5 = 12 + (3/2)x
2x-(3/2)x = 17
x/2 = 17
x=34
Checking the left side, (2x-5) = 2(34) - 5 = 63.
Checking the right side, 3(4+(34/2)) = 3(4+17) = 3(21) = 63.
Libby earns $10 each hour for babysitting. Let m = the money she earns, and t = the time in hours she is babysitting. What equation represents this proportional relationship?
Answer:
$10t=m
Step-by-step explanation:
If for each hour is $10.
She would earn the number of hours times $10.
Example: She did babysitting for 4 hours this weekend. The equation is $10(4)=m or $10 x 4 = m. m=40
I need help with this
The quotient x of and 3
Easy :)
Quotient means dividing something by something else.
So,
Quotient of x and 3 is x3
If the question says Quotient of x and 3 minus 8 then you can write it as x3-8
[tex]\large\sf\red{thank \: you}[/tex]
33 points | dont guess please | no links
Answer:
Joe mama
Step-by-step explanation:
Rachel used 18 centimeters of tape to wrap 6 presents. How much tape will Rachel need in all if she has to wrap 15 presents? Solve using unit rates.
centimeters
Answer:
Rachel would need 45cm of tape to wrap 15 presents.
Step-by-step explanation:
Firstly we need to find how much is required to wrap one presnt: 18÷6=3.3cm of tape is needed to wrap one present.
Secondly to find how many she needs to wrap 15 we sinply multiply 15 by three and get 45.
I hope this helps you in any way.
HELP IM LITERALLY FAILING MATH!!!
Answer:
1.4 ft
Step-by-step explanation:
Ok so first off you want to take the area(1.96) and divide it by your height(1.4)
This will get you B!(1.4)
Also since this is a square all the sides are equal!
Answer: b= 1.4
Step-by-step explanation:
Area = length x width
1.96 = “b” x 1.4
Since we have the area and one side of the box, we can rearrange the equation to find the missing side.
Since 1.4 is being multiplied on the right side of the equation, we must divide by 1.4 to remove it. Divide both sides by 1.4
1.96/1.4= b
b= 1.4
Determine the values of x and y.
Answer:
answer is d please follow me I hope it will help you
(3x+3)^2+(x+5)(x-4)
someone help thankyou
A variable needs to be eliminated to solve the system of equations below. Choose the correct first step.
-9x-8y= 41
-9x-2y=71
Answer:
I think it is add to eliminate x
Answer:
Step-by-step explanation:
The sum 9 of and x
??
Can someone help me. Will Mark brainliest.
Answer:
The answer is 50.
Hope this helps. sry if it is wrong
2 1/4 times 2 1/2
SHOW YOUR WORK!!!
Answer:
45/8 or 5 5/8
Step-by-step explanation:
2 1/4. 2 times 4 is 8 plus 1 is 9 (9 over 4 (9/4)). 2 1/2. 2 times 2 is 4 plus one is 5. (5 over 8 (5/2)). 9/4 x 5/2. 9 times 5 is 45, 4 times 2 is 8. you get the improper fraction 45/8. 45 simplified is 5 5/8. hope i helped.
Answer:
45/8 or 5 5/8
Step-by-step explanation:
When multiplying fractions, it ALWAYS so much easier to make them into improper fractions (for me at least). When doing this, multiply the denominator to the whole number and add the numerator and keep the denominator the same. So, for 2 1/4, you could use the equation 2(4) + 1 = x/4. You should get 9/4. Doing this for the other mixed fraction, you get 5/2.
Multiplying fractions is pretty straightforward after that. You don't have to change the denominators to match each other like you do when adding, instead you just multiply straight across. Multiply both of the numerators and then the denominators.
Numerators: 9 x 5 = 45
Denominators: 4 x 2 = 8
So, you get 45/8. If you're wanting a mixed number fraction, just divide 45 by 8. 8 goes into 40 5 times, and you get a left over number 5. Therefore, as a mixed fraction you get 5 5/8.
I don't know how you wanted me to show my work, but I tried the best I could to explain.
Please help
How much per song?
Answer:
1.20 per song
Step-by-step explanation:
Its quite simple. just take 6 divided by 5
help please need answers
Answer:
slope: 2/3 or 0.6666...
Step-by-step explanation:
find two points on the line : (1,2) and (0,-2) and do rise over run. Rise = 2 and Run = 3, so you put it in rise over run form. Rise/Run = 2/3. The graph is positive.
What is the surface area
Answer:
red) area = 59.2 km²
Step-by-step explanation:
area of bottom 4 x 4 = 16
area of 4 sides = 4 (1/2)(4)(5.4) = 43.2
16 + 432 = 59.2 km²
Answer:
Step-by-step explanation:
lateral area = 2(base)(slant height) = 2·4·2 = 16 km²
base area = base² = 4² = 16 km²
surface area = 16 + 16 = 32 km²