Answer:
a=25
Step-by-step explanation:
a=3x7+4
a=21+4
=25
Which of the following statements about operations with fractions is not correct?
To divide, flip the second fraction and then multiply.
O Multiply across fractions with different denominators.
O Change a mixed number to a fraction first.
Add and subtract across fractions with different denominators.
Answer:
D is incorrect.
Step-by-step explanation:
In order to add or subtract fractions, they must have the same denominators
Find the indicated length.
Line WX bisects YZ at point W. Find YZ if WZ=9 5/8
Given :
Line WX bisects YZ at point W.
[tex]WZ=9\dfrac{5}{8}=\dfrac{77}{5}[/tex] .
To Find :
The length of YZ .
Solution :
Since , the point W bisect YZ .
So , it cuts YZ into two equal parts i.e YW and WZ .
Therefore , YW = WZ
Also , YZ = YW+WZ = 2WZ
[tex]YZ = 2\times \dfrac{77}{5}\\\\YZ=\dfrac{154}{5}\\\\YZ=30\dfrac{4}{5}[/tex]
Hence , this is the required solution .
Convert 240 degrees to radians in form of pi
Answer:
The answer is
[tex] \frac{4\pi}{3} [/tex]Step-by-step explanation:
To convert a value from degrees to radians multiply the value by [tex] \frac{\pi}{180} [/tex]
From the question the value given is
240°
Converting it into radians we have
[tex] \frac{\pi}{180 } \times 240 \\ = \frac{240\pi}{180} [/tex]Simplify
We have the final answer as
[tex] \frac{4\pi}{3} [/tex]Hope this helps you
Write an algebraic expression for each verbal expression. Just start from 9 and down to 23
Answer:
Step-by-step explanation:
8. 32 / y = 3(y - 4)
11. Perimeter of pentagon = 5L
12. Area of circle = π r²
13. surface area of sphere = 4πr²
21. f - 5g = 25 - f
22. 3b - 100 = 6b
23. 4 x (14 + c) ²
Write an equation for the description.
The difference between a number x and 12 is 18.
Answer: x - 12 = 18
Step-by-step explanation:
difference means - and is means equals hope this helps
Answer:
x-12=18
Step-by-step explanation:
Difference means subtract and is means equal to, if you want to solve for x you add 12 to both sides.
Elisa withdrew $26 at a time from her bank account and withdrew a total of $208. Frances
withdrew $49 at a time from his bank account and withdrew a total of $245. Who made the
greater number of withdrawals?
And how many withdrawals did each person make?
(Please help me!)
Answer:Elisa made the greater number of withdrawals
Step-by-step explanation:
208 divided by 26 is 8
245 divided by 49 is 5
Answer:
5
Step-by-step explanation:
divid lol
Solve the literal equation 2a - b = 3b – a for a .
help pls
Answer:
a = 4/3 b
Step-by-step explanation:
2a - b = 3b – a
Add a to each side
2a+a - b = 3b – a+a
3a -b = 3b
Add b to each side
3a -b+b = 3b+b
3a = 4b
Divide each side by 3
3a/3 = 4b/3
a = 4/3 b
Answer:
a = 4/3 b
Step-by-step explanation:
2a - b = 3b – a
Add a to each side
2a+a - b = 3b – a+a
3a -b = 3b
Add b to each side
3a -b+b = 3b+b
3a = 4b
Divide each side by 3
3a/3 = 4b/3
a = 4/3 b
4.3-4.4 section of pre-calculus problem in link please also tell how you got your answer if can .
Answer:
the image os not clear mate sorry
Im sorry for wasting your time just wanted to say you're beautiful <3
What is the value of x in the equation 2/3x + 3 = 7
Answer:
6
Step-by-step explanation:
2/3x=4
then 4/ 2/3 (you can just input this in a calculator)
it equals 6!
Answer:
x=6
Step-by-step explanation:
2/3x + 3 = 7
subtract 3 from both sides to get
2/3x = 4
divide 2/3x by 2/3 to isolate the variable
2/3x ÷ 2/3 = 4
what you do to one side you do to the other, so divide 4 by 2/3 as well, then you get
2/3x ÷ 2/3 is x
4 ÷ 2/3 is 12/2 which is equal to 6.
x=6
The length of a rectangle is 7 inches more than its width. The perimeter of
this rectangle is 78 inches. Find the length of this rectangle.
First known equation is:
2L + 2W = 46
Second equation is:
L = W +7
Put the variable L of the second equation in the first equation.
2(W+7) + 2W = 46
2W +14 +2W = 46
4W = 32
W=8
Then resolve L using any of the above initial equations
L = 8 + 7 = 15
Verify: 2L +2W = 46
2(15) + 2(8) = 30 + 16 = 46 = perimeter
Step-by-step explanation:
Let the length = 7x
Let the breadth = x
As we know that
perimeter of rectangle =2(l+b)
Also perimeter here = 78 inches
Acc. to question
2(l+b) = 78 inches
[tex]2(7x + x) = 78[/tex]
[tex]16x = 78[/tex]
[tex]x = \frac{78}{16} [/tex]
[tex]x = 4.8[/tex]
so bredth = 4.8 approx
length = 7*4.5 =31.5 approx
Hope it helps u
Noah spent $5 to get into the fair, and $2 for every ride. Write an equation to model this situation.
Answer:
2x+5
Step-by-step explanation:
2 dollars multiplied by every ride he rides, which is represented as x, and 5 dollars to just get in, which is a flat price, it doesn't change.
2x+5
Answer:
y=5+2x
Step-by-step explanation:
5 is only one time. 2 for every ride. Ride is x for how many times you'll ride
Solve 2x-1/y = w+2/2z for w.
Answer:
the answer is w=4xz-2z/y-2
Step-by-step explanation:
on edge 2020
Answer:
d. w = 4xz - 2z / y -2
Step-by-step explanation:
edg '22
Three saucepans hold 500ml,1litre and 2.5litres respectively.Write the ratio of their capacities in its lowest terms
Answer:
1 : 2 : 5
Step-by-step explanation:
Each quantity must be expressed in the same units of measure, thus
1 litre = 100 ml and 2.5 litres = 2500 ml , then
500 : 1000 : 2500 ← divide each part by 500
= 1 : 2 : 5 ← in simplest form
Convert as indicated
10 lb 7 oz to ounces
Answer:
167oz
Step-by-step explanation:
There are 16oz in 1 lbs so we multiply the 10lbs by 16 to get oz.
10lbs * 16oz = 160oz
Now we add the 7oz because that's already in the correct unit.
160oz + 7oz = 167oz
HELP ME ASAP PLEASE I NEED HELP
Answer:
B
Step-by-step explanation:
2/3*4+3=9
If S (3,-4) is translated 5 units left and 3 units up, what is the ordered pair of S?
Answer:
(-2,-1)
Step-by-step explanation:
3-5=-2
-4+3=-1
The coordinate of the point S if the point is translated 5 units left and 3 units up are (-2,-1). The correct option is A.
What are coordinates?A coordinate system in geometry is a system that employs one or more integers, or coordinates, to define the position of points or other geometric components on a manifold such as Euclidean space.
Given the coordinate (3,-4) of the point S. Now, if the point is translated 5 units left and 3 units up, then the new coordinates of S are,
(3,-4) → (3-5 , -4+3) = (-2, -1)
Hence, the coordinate of the point S if the point is translated 5 units left and 3 units up are (-2,-1).
Learn more about Coordinates here:
https://brainly.com/question/23450276
#SPJ2
what’s the ratio of $30 in 2 hours.
Answer:
$15 per hour
Step-by-step explanation:
what’s the ratio of $30 in 2 hours.
= $30 / 2 hours
= $15 per hour
24 = b - 3
i need to solve this with 2 steps + work
Answer: b =27
Step-by-step explanation:
24 = b -3 Just add 3 to both sides
+3 +3
b = 27
Answer:
b=27
Step-by-step explanation:
Let's solve your equation step-by-step.
24=b−3
Step 1: Flip the equation.
b−3=24
Step 2: Add 3 to both sides.
b−3+3=24+3
b=27
Answer:
b=27
4w + 2/7 = -4/5
Need help asap
an atom has an atomic number of 12 and a mass number of 25.how many neutrons does the atom have?
Answer:
The atomic number is the number of protons (12) and the mass number is the number of neutrons and protons combined. So you'd subtract 12 from 25 (25-12=) and that'd get you 13 as your answer. If you need to find the number of electrons, it'll be the same as the number of protons unless it has a certain charge and if it does, if it's positive it has more protons (+) than electrons (-), if it is negative it has more electrons (- negatively charged) than protons (+ positively charged)
(credits to halltho)
!PLEASE ANSWER FAST ILL GIVE BRAILIEST AWARD! A glider begins its flight 1 1/2 mile above the ground. After 60 minutes, it is 9/10 mile above the ground. Find the change in height of the glider. If it continues to descend at this rate, how long does the entire descent last?
Answer:
The change in height is 6/10 miles per hour and the entire descent will last 150 minutes (2 hours and 30 minutes)
Step-by-step explanation:
The gilder started 1 1/2 miles above the ground, in other words, it started [tex]\frac{15}{10}[/tex] miles above the ground. After 60 minutes it is now [tex]\frac{9}{10}[/tex] miles above the ground.
Therefore, the change in height in one hour is: [tex]\frac{15}{10}-\frac{9}{10}= \frac{6}{10}[/tex] miles.
Now, we know that the glide descends at a rate of 6/10 miles per hour, we can solve the second part of the problem using the rule of three (or proportions)
If it takes it 60 minutes to descend 6/10 miles, how long it will take it to descend 15/10 miles?
60 minutes --- 6/10= .6
x minutes ---- 15/10= 1.5
Therefore [tex]x=\frac{60(1.5)}{.6} =\frac{90}{0.6} =150[/tex] minutes
Thus, the entire descent will last 150 minutes.
Please help! The selected one is wrong
6) The rectangle
below has a perimeter of 46. Find its area.
Answer:
144
Step-by-step explanation:
2(3x+4)+2(2x_1)=64
x=4
2x_1=9
3x+4=16
9×16=144
Evaluate: b ÷ a for a = 2 and b = 18
Answer:
b/a=9, 9 is the answere
Step-by-step explanation:
i did it mentally lol
Answer:
9
Step-by-step explanation:
1. Fill in numbers to the equation
18 ÷ 22. Solve to get 9
Sorry disturbing you all
but can somone explain this?
Answer:
352/5 or 70.4
Step-by-step explanation:
Answer:
84.48
Step-by-step explanation:
the square root is basically dividing the number under the line which is 4096 and 40.96 by 2 to get 64 + 20.48
so you add them together to get 84.48.
Hope this helps you with your question :))
r= 0.75s for s solving for a variable ANSWER PLEASE ASAP
Answer:
S= 1.3r
Step-by-step explanation:
The 3 is underlined because it was suppose to go on top of the 3 but it didn't give me the option but that means infinity of 3
If you need more information you cant tell me hope this helped!
Simply the following question in the photo
Answer:
Step-by-step explanation:
Which graph shows a system of equations with the solution (5, -3)?
Answer:
9,9
Step-by-step explanation:
Answer:
9.9
Step-by-step explanation:
Sorry if wrong D:
If the midpoint of the line segment with endpoints (-4, b) and (8, 0) is (2, 1). What is the value of b
Answer:
B=2
Step-by-step explanation:
[tex](\frac{8+x_1}{2} )(\frac{0+y_1}{2})[/tex]
[tex](\frac{8+x_1}{2} )=2[/tex] multiply 2 by 2=4 then write [tex]8+x_1=4[/tex] subtract 8 from both sides 4-8= -4
[tex](\frac{0+y_1}{2} )=1[/tex] multiply 2 by 1=2 then write [tex]0+y_1=2[/tex] subtract 0 from both sides
2-0=2
To check [tex]MP= (\frac{x_1+x_2}{2} )(\frac{y_1+y_2}{2} )\\[/tex]
[tex]MP= (\frac{-4+8}{2} )(\frac{2+0}{2} )[/tex] -4+8=4 2+0=2
[tex]MP= (\frac{4}{2} )(\frac{2}{2} )[/tex] 4/2=2 and 2/2=1 MP=(2,1)
