Answers
9514 1404 393
Answer:
B. 39°, 106°, 43°
Step-by-step explanation:
The sum of angle measures in a triangle is 180°. Then the sum of angle expressions will be 180.
(3x +1) +(11x -4) +(5x -7) = 180
19x -10 = 180 . . . . . collect terms
19x = 190 . . . . . . . . add 10
x = 10 . . . . . . . . . . . divide by 19
__
Then the three angle measures are ...
3·10 +1 = 3111·10 -4 = 1065·10 -7 = 43The appropriate choice is ...
B. 31°, 106°, 43°
Related Questions
Sasha uses 6.1 pints of white paint and blue paint to paint her bedroom walls. 2/5 of this amount is white paint, and the rest is blue paint. How many pints of blue paint did she use to paint her bedroom walls?
Answers
Answer: 3.66 pints of blue paint.
Step-by-step explanation:
She used 2/5 of the total number of pints to paint white.
That number in pints is:
= 2/5 * 6.1
= 2.44 pints of white
The number of pints used to paint blue is therefore:
= 6.1 - 2.44
= 3.66 pints of blue paint.
calcule o valor x na equação do 1° grau: 16x-21=x+9
Answers
Answer:
16x-21=x+9
15x=30
x=2
eu acho que e nao sei mais o outro cara respondeu ali
Step-by-step explanation:
please I need your help
Answers
Answer:
the volume would change since the object is heavier
Step-by-step explanation:
I can't see other steps and the more the mass and the area of the object the more volume ots take up
Answer: Increasing and decreasing the mass of a substance will also effect the volume and it will increase and decrease the volume whether the mass is increased or decreased
Step-by-step explanation:
A price used to be £40, but is now £50.
What is the percentage increase?
Answers
Answer:
25%
Step-by-step explanation:
MP= 40
SP= 50
Change(increase) = 10
Change (increase) precentage = 10 / 40 x 100 = 25%
I hope im right!!
Answer:
25 percent
Step-by-step explanation:
£40 is the old price and £50 is the new price. In this case we have a positive change (increase) of 25 percent because the new value is greater than the old price.
Hope it helps
Please mark me as the brainliest
Thank you
-8(5m-7.4)
NEED ASAP
Answers
Answer:
-40m = 59.2
Step-by-step explanation:
simplify
Answer:
-40m + 59.2
Step-by-step explanation:
Distribute
-40m + 59.2
If you're solving for m then set the equation equal to 0 and solve.
-40m + 59.2 = 0
-40m = -59.2
m = 37/25
Rex puts $5,000 in a savings account with a simple
interest rate of 2.5%. How much interest does Rex
carn after 2 year's
Answers
Answer:
Rex earns $250 in interest after 2 years.
Step-by-step explanation:
What is the name of the circle that has radius ?
A
B
C
Answers
Solve 2x + 20 = 6x – 12*
Answers
Answer:
x = 8
Step-by-step explanation:
Given
2x + 20 = 6x - 12 ( subtract 2x from both sides )
20 = 4x - 12 ( add 12 to both sides )
32 = 4x ( divide both sides by 4 )
8 = x
=> 2x + 20 = 6x - 12
=> 20 + 12 = 6x - 2x
=> 32 = 4x
=> x =32/4
=> x = 8Aubrey finished 2/9 of a project on Monday and 1/4 of the project of Tuesday. How much of the project has Aubrey completed?
Answers
Answer:
17/36
Step-by-step explanation:
We have to find a common denominator, so the first common denominator for 4 and 9 is 36. 9x4=36, so we multiply 2 by 4, which equals 8. 4x9-36, so we multiply the 1 by 9, and get 9. Then we add the numerators, 8 and 9, and get 17. So it's 17/36
The reading levels of a random sample of elementary students are represented by the dot plot.
Which decimal is the best approximation of the mean reading level for this group of students?
Select one:
2.7
1.5
2.3
1.9
Answers
Step by step example
help pleaseee aha
find x pleaser
Answers
Answer:
125 degrees
Step-by-step explanation:
It is congruent to the angle that is labeled 125 degrees
Hope that helps!
Answer:
x = 125 degrees
Step-by-step explanation:
ok so the 2 lines are parallel and there is a line through them
i see the opposite angle to x equals 125 degrees
they are the same so...
x = 125 degrees
Logan bought 30 balloons. 4/6 of the balloons are purple.
How many of the balloons are purple?
Answers
Answer:
20 are purple.
Step-by-step explanation:
4/6 * 30
= 120/6
= 20.
Jennifer gets a salary of $12000 while David gets $8400 more per month. What is the ratio of the salaries of Jennifer and David?
A.10 : 7
B.7 : 10
C.9 : 6
D.12 : 7
Answers
Jennif er's salary = $12000
Step 2
It is given that David gets $ 8400 more per month than Jennifer, therefore David's salary = 12000 + 8400 = $20400
Step 3
The fraction of the salaries of Jennifer and David = 12000 = 10 204 00 17
Step 4
Therefore the ratio of the salaries of Jennifer and David = 10:17
which expression is equivalent to the expression shown below? -1/2(-3/2x+6x+1)-3x
Answers
Answer:
3 2 − 6 − 1
2
− 3
Step-by-step explanation:
Isaiah earns $60 per week mowing lawns in the summer and shoveling driveways in the winter. He invested $220 in equipment. How long will it take him to earn $860? Find the equation and solve.
Answers
Answer:
18 weeks
Step-by-step explanation:
Create an equation where x is the number of weeks he works
60x - 220 will represent his profit, since he gets $60 a week but spent $220 in equipment.
Set this equal to 860, then solve for x, to find when he will earn $860
60x - 220 = 860
60x = 1080
x = 18
So, it will take him 18 weeks to earn $860
Question 1
(n - 3)(2n + 6)
18n2 - 45n + 25
Answers
18n2-45n+25
8n-18n2-45n+25
8n-18n2
8-45n=37
37+25=62
Answer:
36n^4−324n^2−45n+25
Step-by-step explanation:
0.2(3k+1)=-0.4-(-0.2-0.1K)
Answers
Answer:
k=−0.8
Step-by-step explanation:
Start with the equation: 0.2(3k+1)=-0.4-(-0.2-0.1K)
Use distributive property on each side of the equation. For the left side, distribute 0.2 into 3k and 1, and for the right side, distribute -1 into -0.2 and -0.1k. (We use a -1 because the negative sign on the outside of the parenthesis is equivalent to -1)
(0.2)(3k) + (0.2)(1) = 0.6k + 0.2
(-1)(-0.2) + (-1)(-0.1k) = 0.2 + 0.1k
New equation: 0.6k + 0.2 = -0.4 + 0.2 + 0.1k
Now we can combine like terms on the right side. (-0.4 and 0.2)
0.6k + 0.2 = 0.1k - 0.2
Now to get rid of k on one side, we can subtract 0.1k from the right side.
(0.6k - 0.1k) + 0.2 = (0.1k - 0.1k) - 0.2
0.5k + 0.2 = -0.2
Now we need to get 0.5k by itself, so we'll subtract the 0.2 on both sides.
0.5k + (0.2 - 0.2) = (-0.2 - 0.2)
0.5k = -0.4
To get k by itself, we must divide both sides by 0.5.
(0.5k / 0.5) = (-0.4 / 0.5)
k = -0.8
90 out of 120 students like pizza. what percent of students did not like pizza?
Answers
Answer:
25%
Step-by-step explanation:
90/120=0.75
1-0.75=0.25
0.25x100= 25%
Jocelyn estimates that a piece of wood measures 5.5cm. If it actually measures 5.62 cm, what is the percent error of Jocelyn’s estimate?
Answers
Answer:
2.14% error
Step-by-step explanation:
Use the percent error formula:
| (observed - expected) / expected | x 100
Plug in the observed and expected values:
| (observed - expected) / expected | x 100
| (5.5 - 5.62) / 5.62 | x 100
Calculate:
= 2.14% error
So, the percent error of Jocelyn's estimate is 2.14%
Is the following shape a square? How do you
know?
Answers
Answer:
B
Step-by-step explanation:
Answer:
no the sides are not congruent aka B
Step-by-step explanation:
a TV reduced by 30% to £560. What was the original cost of the TV?
Answers
Answer:
£800
Step-by-step explanation:
when you recuce the price of something by 30%, it is 70% of the original (100% minus whatever percent reduction).
.7x=560 where x is the original price of the tv
560/.7=800
the original price of the tv is £800
what is the answer to this 5(a+b)-a-b
Answers
Answer: 4a + 4b
Step-by-step explanation: distribute the 5 and combine like terms. It would distribute to 5a + 5b -a -b which simplifies to 4a + 4b.
Answer:
4a + 4b
have a great day!!
let f(X)=x^2+2 and g(X)=1-3x
Answers
Answer:
1. y = x2+2
2. g = (-3x+1)/x
Step-by-step explanation:
1. No explanation
2.
Let's solve for g.
gx=1−3x
Step 1: Divide both sides by x
gx /x = −(3x+1 )/x
g = (-3x+1)/x
Hope it helped!
Evaluate 10f+⅔(4d+7)-8
Answers
Answer:
9.3 simplified should be 3 if this isn't the answer then I don't know what is anymore because I just wasted my time if its wrong ;-;
Step-by-step explanation:
also I cant put the explanation sorry it says it has a link or inappropriate words in it when it doesn't.
9.3 divided by 3 is 3 so sense that isn't a fraction or anything i guess 3 is the answer in not to sure-
Answer:
8/3d +10f +-10/3
Step-by-step explanation:
does anyone know this ?
Answers
Answer:
an = 24(2/3) - n
Step-by-step explanation:
I NEED THE ANSWER ASAP PLEASE
A small dog gets fed 3/4 cups of dog food twice a day. Using d for the number of days and f for the amount of food in cups, write an equation relating the variables. Use the equation to find how many days a large bag of dog food will last if it contains 210 cups of food.
Answers
Answer:
f=1.5⋅d or equivalent. The bag will last 140 days since 210÷1.5=140.
Step-by-step explanation:
can someone show me step by step on how to get the answer?
Answers
I'm confused with that too, have you researched your answer?
Item 15 Fill in the blank so that the ordered pair is a solution of y=12x+2. ( , 14)
Answers
Answer:
(1, 14)
Step-by-step explanation:
If you substitute the 14 in;
14 = 12x+2
-2 -2
12 = 12x
/12 /12
1 = x
50% of 50% of x. PLEASE HELP I WILL GIVE BRAINLIEST
Answers
Answer:
25. 50 percent of 50 is 25 divided by 2.
Step-by-step explanation:
step1:Our output value is .50.
step2:we represent the unknown value with x
step3: from step1 above,.50=100%
step4: similarly,x=50%
step5: This results in a pair of simple equation:
.50=100%(1)
x=50%(2)
step6:by dividing equation 1 by equation 2 and noting that both the RHS(right hand side)of both equations have the same unite(%);we have
.50. 100%
____. = ____
x. 50%
step7: again,the reciprocal of both sides gives
x. 50
___ =. ___
50. 100
°x=0.25
therefore,50%of.50 is 0.25
HELP!!! pls with this question !
Answers
Answer:
B
Step-by-step explanation:
the graph should start at negative five not four