Answer:
200 questions
Step-by-step explanation:
Given data
Let the total questions be x
so that
21% of x= 42 questions
let us solve for x
21/100*x= 42
0.21*x= 42
0.21x= 42
Divide both sides by 0.21
x= 42/0.21
x= 200 questions
Hence the questions are 200 questions
Ernesto has $50 in a savings account that earns 10% interest, compounded annually.
To the nearest cent, how much will he have in 3 years?
Answer:
66.55$
Step-by-step explanation:
Since it's compounded you have to do the math for every year
50x.1=5 50+5=55
55x.1=5.5 55+5.5=60.5
60.5x.1=6.05 60.5+6.05=66.55$
Ofc if I'm wrong flame me
Blank plus 1/5 equals 1/2
Answer:
2/10 + ___ = 1/2
Step-by-step explanation:
2/10 + 3/10 = 1/2
. For what value of x do the expressions 2x +2 and 3x – 6 have the same value?
Answer:
x = 8
Step-by-step explanation:
To find the solution, equate the 2 expressions, that is
3x - 6 = 2x + 2 ( subtract 2x from both sides )
x - 6 = 2 ( add 6 to both sides )
x = 8
As a check
2x + 2 = 2(8) + 2 = 16 + 2 = 18
3x - 6 = 3(8) - 6 = 24 - 6 = 18
Both expressions have the same value when x = 8
Melody Pond and a tree cast a shadow at the same time of day. Melody is 5.6 feet tall and casts a 10-foot shadow. If the length of the tree's shadow is 62 feet, what is the height of the tree?
Answer:
34.72 feets
Step-by-step explanation:
Using the relation :
Length of tree / shadow of tree = height of melody / shadow of melody
From the details given in the question :
Let height of tree = h
h / 62 = 5.6 / 10
Cross multiply
h * 10 = 62 * 5.6
h = 347.2 / 10
h = 34.72 feets
Hence, the height of tree is 34.72 feets
Jada biked 35 kilometer and then stopped to adjust her helmet. She biked another 12 kilometer and stopped to drink some water. Jada has to bike a total of 3 kilometers. How many more kilometers does Jada have to bike? 137 km 1910 km 237 km 2910 km
Answer:
1 9/10 kilometers
Step-by-step explanation:
Given :
Distance 1 = 3/5 kilometers
Distance 2 = 1/2 kilometers
Total distance to be covered = 3 kilómeters
Distance already covered :
3/5 + 1/2
(6 + 5) / 10
= 11 / 10 kilometers
Distance left to be covered :
3 - 11/ 10
(30 - 11) / 10
= 19 / 10 kilometers
= 1 9/10 kilometers
1 9/10
I took the quiz
For this cylinder the radius = 6.8 inches and the height L = 14.2 inches. Which is the BEST estimate for the surface area?
i dont think your question postedStep-by-step explanation:
Álgebra/help
There are 4 consecutive integers that have sum of 266 . Which integers are they?
Answer:
the four consecutive integers are 65 , 66 , 67 and 68 .
Step-by-step explanation:
you should let the first integer be x
so that would leave the 2nd as x + 1
The 3rd would be x + 2
and the 4rth would be x + 3
so X + X + 1 + X + 2 + X +3 =266
you can combine your like terms:
X+X+X+X= 4x
and 1+2+3=6
then you do simple algebra:
4x= 266-6
266-6= 260
4x=260
divide both sides by 4
260/4 is 65
x = 65
65 is your answer then you go up by 3 numbers.
hope I helped!!!
Reina scored twice as many goals at her last field hockey game as she did during the first game of the season. If ff represents the number of goals Reina scored during the first game, which expression represents the number of goals she scored during the last game?
Answer:2f
Step-by-step explanation:
The graph models the amount of radioactive element present over the course of a 10-minute experiment.
What is the average rate of change of the amount of the element over the 10-minute experiment?
A.
-2.0 g/min
B.
-5.0 g/min
C.
-0.2 g/min
D.
-1.8 g/min
Answer:
D is the answer - 1.8 g/min
Step-by-step explanation:
OMG PLZZZZZ HELP MEEEEEEEEEEEEEEEEEEEEE
Answer:
=−6
Step-by-step explanation:
Answer:
1)-6
Step-by-step explanation:
4. Jill math score on her test last year 7th grade was 650. Her math teacher told her that her test level went up by 2586. What was Jill's test score level in 6 grade? answer
The diameter of a circle is 18 cm. Find its circumference in terms of pie
im sorry but can you show more so i can help you Step-by-step explanation:
Answer:
[tex]\huge\boxed{\sf C = 18 \pi \ cm}[/tex]
Step-by-step explanation:
Diameter = 18 cm
Radius = D / 2 = 18 / 2 = 9 cm
Circumference = 2πr
C = 2π (9)
C = 18 π cm
[tex]\rule[225]{225}{2}[/tex]
Hope this helped!
~AH1807Fractions equivalent to 6/12 choose all correct 1)1/2 2)2/4 3)3/9 4)1/6 5)4/10
Answer:
1 and 2
Step-by-step explanation:
Answer:
1/2
Step-by-step explanation:
6/12 =1/2
I hope this helps
hi
what is 9257289357218q4918 x 5823829.94325892580254
Answer:
ridiculous
Step-by-step explanation:
tssssk *extra characters*
Answer:
53912878951978360832q4918
Step-by-step explanation:
9257289357218q4918(5823829.943259)
=53912878951978360832q4918
Help me with this pls
Answer:
180
Step-by-step explanation:
guessed the answer
that was the easiest
matematicas 2×-4y=-8
Answer:
y = 2.5
Step-by-step explanation:
-4y = -8-2
-4y = -10
y = -10÷-4
y = 2.5
PLEASE HELP ME FAST!!
Translate , (−3,− 1) to the right 1 unit. Then reflect the result over the y-axis. What are the coordinates of the final point?
show work
Answer:
(-2, 1).
Step-by-step explanation:
Move (-3, -1) one unit to the right, and you get (-2, -1). Reflect (-2, -1) over the y-axis, and the coordinates will be (-2, 1).
The only thing that changes is the y coordinate. If you had reflected it over the x-axis, the x coordinate would have changed and the y coordinate would have stayed the same.
On the number line, which point is closest to
A. A
B. B
C. C
D. D
Answer:
the answer is ç
Step-by-step explanation:
because π=3.14
I WILL GIVE OUT BRAINELIST Quadratic functions g(x) and h(x) are graphed on the same coordinate grid. The vertex of the graph of h(x) is 12 units above the vertex of the graph of g(x) .
Which pair of functions could have been used to create the graphs of g(x) and h(x)?
h(x)=(x+12)2 and g(x)=x2
h(x)=x2−12 and g(x)=x2
h(x)=x2+12 and g(x)=x2
h(x)=(x−12)2 and g(x)=x2
Answer:
h(x)=(x-12)2 and g(x)=2
When factoring this equation 5x2 + 2x-3, the first step is to place values in the X. In the X in this problem, you need to find two numbers that multiply to be ______ and add to be ______.
Answer:
10x+x
Step-by-step explanation:
It angle relationship and show work??
Answer:
m<x=146
Step-by-step explanation:
its a supplementary angle, meaning both angles add up to 180.
So we subtract 34 from 180 which is 146.
180-34=146
Enter an equation in the form y = mx + b that represents the function described by the graph.
PLEASE HELP
Answer:y=4x+2
Step-by-step explanation:m= rise and b=run rise /run when u look at the graph start at the pount to a count how many u rise to get to 2 then cout how many u run to get to 2 again so that would be y=4x+2.
HELP QUICK I WILL GIVE YOU THE CROWN
Answer:
G
Step-by-step explanation:
5+8+10+7=30
10/30=1/3
Answer:
G. or H. one of em
Step-by-step explanation:
PLS HELP!!! WILL AWARD BRAINLIEST!
Rewrite this equation without using absolute value.
Answer:
0.127
Step-by-step explanation:
|√15-5+1 |
|√15-4 |
|3.873-4 |
|-0.127|
0.127
Use the figure to complete the proportion.
Answer:
BE / AB = HE / AH
Step-by-step explanation:
AE is angle bisector
BE / HE = AB / AH
BE / AB = HE / AH
select the equation slope- intercept for 2x + y = 7
Answer:−2
Step-by-step explanation:
Answer:
slope is -2 and y intercept is (0,7)
Step-by-step explanation:
Which of these two triangles are congruent according to ASA Theorem?
Sammy´s candy is solid in cylindircal containers that are 20 cm tall and have bases with a radius of 8 cm each.
Answer:
What is the question? Surface area? Volume?
Step-by-step explanation:
The water pipe has a radius of 5 cm and a height of 7 cm. What volume of
water does it take to fill the pipe?
Answer:
549.5 cm
Step-by-step explanation:
Answer:
pipe is cylinder
volume= pi r²h
radius= 5cm
height= 7cm
volume = 22/7 × (5×5) × 7
simplifying the equation
= 22 × 25
= 550cm³
find the value for m
-10 + 59 = 5m = 7 + 3m
-10+59=5m=7+3m
49=5m=7+3m
49-7=5m-3m
m=42/2
m=21
Answer:
21
Step-by-step explanation:
-10+59 = 5m = 7 + 3m
49 = 5m = 7 + 3m
49 - 7 = 5m - 3m
42 = 2m
42/2 = m
m= 21