Answer:
x = 5
y = 7
Step-by-step explanation:
Since they are both equal to y, we can set them equal to each other.
2x - 3 = x + 2
Combine like terms and isolate the x.
x = 5
Plug in the x to either equation to get the value of y.
y = (5) + 2
y = 7
write a numerical expression for the verbal expression
eighteen more than five
Answer:
5+8
Step-by-step explanation:
Sally bought a sofa for $450. It was marked 35% off. The sales tax is 8.5%. Find the total cost of the sofa.
Answer:
$170.89 I think
Step-by-step explanation:
Answer:
answer amswersmwkkw
Step-by-step explanation:
7%
14.6 is the geometric mean between a and 9. Find a to the nearest tenth.
Answer:
Step-by-step explanation:
Becca is painting a birdhouse (rectangular prism) that has a height of 13cm, a width of 5 cm, and a length of 8cm. How much paint will she need if she only uses 1 coat? 26 sq. cm 0418 sq. cm 0 208 sq. cm
Answer:coo
Step-by-step explanation:Cooke.
The amount of paint which will Becca need to paint the birdhouse in 1 coat is 418 cm².
What is surface area?Surface area of any solid or the 3 dimensional body is the area of each faces by which the solid body is enclosed.
The surface area of rectangular prism can be given as,
[tex]SA=2(wl+hl+hw)[/tex]
Here, (w) is the width, (h) is the height and (l) is the length of the prism.
Becca is painting a birdhouse. The shape of the birdhouse is similar to rectangular prism with dimensions as, height of 13cm, a width of 5 cm, and a length of 8cm.
Now Becca wants to paint this house using 1 coat. As this paint has to be cover each surface of the house. Thus the amount of total paint should be equal to the surface area of the house.
Here, the dimensions of house is as, height of 13cm, a width of 5 cm, and a length of 8cm. Therefore the surface area of it is,
[tex]SA=2(5\times8+13\times8+13\times5)\\SA=418\rm cm^2[/tex]
Hence, the amount of paint which will Becca need to paint the birdhouse in 1 coat is 418 cm².
Learn more about the surface area here:
https://brainly.com/question/20771646
if someone could give me the answer and step by step
Answer:
101 cm (to 3 sf)
Step-by-step explanation:
-First you want to find side CD:
. Draw a line from point C directly down to make a right angled triangle (you can lable the extra point whatever letter you want but for this explanation it's gonna be x)
. You know that CX will be 16.7cm because its the same length as BA
. To find CD you need to use SOH,more specifically the hypotenuse using SOH
. H=O/S (O=16.7, S= sin(43))
.put this in your calculator and you'll get CD=24.4868624 (don't round yet)
-now you wanna find AD but more specifically XD because that's the little part you don't know:
. Using the same triangle from earlier, we use CAH now to find A (aka XD)
. A=C*H (C=cos(43), H=24.4868624 (the value of H/CD from the previous calculation)
. That should give you: 17.90855746
. You're still not done, do 17.90855746+21.2=39.10855746 (this is your value for AD
-add all your values now:
39.10855746+24.4868624+16.7+21.2=101.4954199
-now round to 3 significant figures:
101.4954199 -> 101cm
The perimeter is 101cm
what is 2+2(2)^2-3 ?????????
Answer: 7
Step-by-step explanation: All you do is simplify it so. 2+2(22)−3
=2+(2)(4)−3
=2+8−3
=10−3
=7
Answer:
7 or 3
Step-by-step explanation:
its 7 if the -3 isnt minus 3 isnt with the ^2
its 3 if it is with the ^2
Pupil who scored 60 in her maths test was absent for English predict what her English mark could have been
Answer:
There is 30% probability for the students who score 60 marks in math.
Step-by-step explanation:
The probability of the students who score 60 marks in math is 30%. There is 70% chance that a student will score less than 60 marks in math. The students who score 60 plus in math will score lesser in English.
Find the value of 2.8 + 6.5
Answer:
Step-by-step explanation:
2.8 + 6.5 = 9.3
Answer:
9.3
Step-by-step explanation:
2.8+6.5=9.3
You'd use addition to solve this
2. Tanya is 15 years older than Sarah. In 3 years, the sum of their ages will be 41.
a) Write an expression for Tanya's age in terms of Sarah's age. Use S to represent Sarah's
current age
b) Write an expression for how old Tanya will be in 3 years, using the expression you wrote
for her age
c) Write an expression for how old Sarah will be in 3 years, using S to represent Sarah's
current age.
d) Write an equation that shows the sum of their future ages will be 42
e) Solve that equation to find Sarah's current age
f) What is Tanya's current age?
Question 1 of 3
Type the correct answer in the box. Use numerals instead of words. If necessary, use / for the fraction bar.
Kay walks upstairs to make her legs stronger. Every day at work, she walks up 9 flights of stairs. If there are 13 steps in 1 flight of
stairs, how many steps does Kay climb in 5 days at work?
Solve the problem
steps
Submit
Reset
Answer:
13 x 9 x 5
Step-by-step explanation:
because there is 13 steps in one flight and there fore we need to multiply 13 x 9
then we have to multiply the product by 5 because it is asked how many steps does she climb in five days
Nathan is saving up to buy a new phone. He already has $90 and can save an additional $10 per week using money from his after school job. How much total money would Nathan have after 4 weeks of saving? Also, write an expression that represents the amount of money Nathan would have saved in w weeks.
Answer:
$130
Step-by-step explanation:
If Nathan already has $90 then you would add the amount of money collected after the 4 weeks. In each week he makes $10.
The equation would be $90+($10x4)= $X
Please help it's due in 1 hr and I don't understand;-;
Answer:
1. x=6 y=7
hope that helps!
In Game 2, your score started at 2 and doubled every time. Two expressions below represent your score after 12 hits.
Answer:
B and D on edg
Step-by-step explanation:
just did it
PLEASE HELP! IM ALMOST DONE WITH THIS ASSIGNMENT PLSSS HELPP ILL GIVE BRAINLIEST SHOW UR WORK
question: solve the solution using substitution.
Answer:
x = -3
y = -8
Step-by-step explanation:
2y = x - 13
3x = y - 1; let y = 3x + 1
substitute to solve for 'x':
2(3x + 1) = x - 13
6x + 2 = x - 13
5x + 2 = -13
5x = -15
x = -3
solve for 'y':
3(-3) = y - 1
-9 = y - 1
-8 = y
Answer:
(-3,-8)
Step-by-step explanation:
Get one of the variables by themself.
3x = y-1
y = 3x+1
Plug that equation into the other one
2(3x+1) = x-13
Distribute the 2 to 3x+1
6x+2 = x-13
Combine like terms
6x+2 = x-13
-x -x
5x+2 = x-13
-2 -2
5x = -15
Divide by 5 on both sides
5x = -15
÷5 ÷5
x = -3
Find y
3(-3) = y-1
-9 = y-1
+1 +1
y = -8
WHAT IS 4,876 DIVIDED BY 76?
i in 3rd grade doing advanced wok, i need help!
Answer:
64,1578
Step-by-step explanation:
your welcome
What is the slope between (2,1); (5,9)
Step-by-step explanation:
To find the slope, you divide the difference of the y-coordinates of 2 points on a line by the difference of the x-coordinates of those same 2 points.
Answer:
[tex]\frac{8}{3}[/tex]
Step-by-step explanation:
(2, 1)
(5, 9)
Find the slope
____________
When finding slope, we always have to follow the formula :
[tex]\frac{y^2-y^1}{x^2-x^1}[/tex]
The y in the fraction are the second number within the coordinate points, while the exponents are the second number from the second point and the first number from the first point. The same goes for x. Therefore substitute x and y with their corresponding values :
[tex]\frac{9-1}{5-2}[/tex]
[tex]\frac{8}{3}[/tex]
A medical equipment industry manufactures X-ray machines. The unit cost C (the cost in dollars to make each X-ray machine) depends on the number of machines made. If x machines are made, then the unit cost is given by the function C(x) = 0.1x2 - 16x +8097. What is the minimum unit cost? Do not round your answer.
Answer:
why cant i round, for example, .9
a pile of coins, consisting of only dimes and quarters, is worth 4 dollars and 55 cents. there are 7 more dimes than quarters in the pile. find the number of dimes and quarters in the pile.
11 quarters
and 18 nickels
Hope this helps! :D
Francis is saving money for a new kindle. she needs to save at least $200 to pay for it and has decided to save $25 per week from babysitting. how many weeks will it be before she can purchase the new kindle. show work please
Answer:
8 weeks
Step-by-step explanation:
to solve divide the total cost of kindle by the money she saves each week.
200÷25 is 8.
and to check you can multiply 25 x 8
Which pair of triangles below MUST be similar?
Answer:
i think is C
Step-by-step explanation:
Answer:
Its C
Step-by-step explanation:
Brain
Find the slope plllls I need help
Answer: 5 over 5
Step-by-step explanation:
Answer:
the slope is 5/4
You feed your pet 1/4 cup of food each morning.
You do this for 5 days. How much total food have
you fed your pet after 5 days?
Answer:
1 1/4 cups
Step-by-step explanation:
you feed your dog 1/4 cups of food each day. You do this for five days. So we can set up an equation 5*1/4 = 1 1/4 cups.
PLEASE HELP QUICKLY!!
Answer:
79
Step-by-step explanation:
Sense all the lines are straight, and will never cross, then adjacent angles must always add up to 180 degrees. 3 and 4 are adjacent. Thus they must add up to 180. So set up as 101 + x = 180. x=180 - 101, and find that x = 79. Plug x back into check. 101 + 79 = 180. and 180= 180. The answer is 79 degrees.
After you withdraw $35 from your checking account, the new balance is $260. Which equation shows the equation that could be used to find the balance on your account before the withdrawal?
8 times a certain number is added to 5 times a second number to give 184.the first number minus the second number is -3.find these number .
Answer:
The numbers are 13 , 16
Step-by-step explanation:
First number be x
Second number be y
x - y = -3 --------------------(I)
x = -3 +y
8x + 5y = 184 ---------------(II)
substitute x = -3 + y in equation(I)
8*(-3 + y) + 5y = 184
-24 + 8y + 5y = 184
-24 + 13y = 184
13y = 184 + 24
13y = 208
y = 208/13
y = 16
Plugin y = 16 in (I)
x - 16 = -3
x = -3 +16
x = 13
y = 4x + 8; y = –x + 3
Answer:
y= -12
Step-by-step explanation:
4x+8 = -x+3 -> Find x by using all information
5x=-5 -> Simplify
x=-1 -> Solve
y=-12 -> Plug in to find y
Taya is on the track team. For practice, she runs 2.5 miles each day. At the
end of 14 days, how many total miles will Taya run?
Answer:
35 miles
Step-by-step explanation:
Answer:
35 miles
Step-by-step explanation:
2.5 x 14
what is x + y = -9 in y=mx+b form
Answer: Talk the Talk. Once a linear equation is solved for y, it is in slope-intercept form, y = mx + b. The coefficient of the x term, m, is the slope of the line and the number (or constant), b, is the y-intercept.
Step-by-step explanation: want it take it don’t want it dont take it
Mrs. Meier bought 5 pounds of
carrots for $1.75. Which represents
the same price per pound?
Answer:
0.35 cents
Step-by-step explanation:
Answer:
it is $0.35 per pound
Step-by-step explanation:
1.75/5 = 0.35
Will give brainliest!
Answer:
250.35
Step-by-step explanation: pythagorean theorem
215^(2)+x^(2)=330^(2)
46225+x^(2)=108900
x^(2)=62675
x=5√2507
x=250.35
Answer:
250.35 yards
Step-by-step explanation:
Use the pythagorean theorem to find the height.
[tex]\sqrt{a^{2}+b^{2} }=c[/tex]
Algebraically change the equation to equal to b.
[tex]\sqrt{c^{2}-a^{2} }=b[/tex]
[tex]\sqrt{330^{2}-215^{2} }=b[/tex]
b=250.35 yards