Answer:
90 minutes
Step-by-step explanation:
0.80x=72
divide 72 by 0.80 = 90
check work... 80% of 90 = 72
Answer:
90 minutes
Step-by-step explanation:
Solve the following quadratic by completing the square. (Hint: It won't factor) x2-10x+5=0
[tex]5+2\sqrt{5} , 5-2\sqrt{5}[/tex] Answer: 5±2[tex]\sqrt{5}[/tex]
Step-by-step explanation:
x2 -10x=5=0
x2-10x+25=-5+25
(x-5)(x-5)=20
[tex](x-5)^{2} =\sqrt{20}[/tex]
[tex]\sqrt{x-5}=\sqrt{20}[/tex]
x-5=±[tex]\sqrt{20[/tex]
x=5±[tex]\sqrt{5*4[/tex]
x=5±2[tex]\sqrt{5}[/tex]
uhmmmm... yea............
Answer:
You add 12.5+12.5+3.02+3.02 which equals 31.04
Step-by-step explanation:
pls answer both parts of this problem for a brainliest !!
Bianca can walk 5/6 of a mile in of an hour. What is her walking speed, in miles per hour?
Step-by-step explanation:
please see it, i work on paper worksheet
Answer:
2 1/2 miles
24 minutes per mile
Charles charges 4 an our to baby sit he also adds an extra 10 dollars onto the total for families with more than 3 children. How much will charles charge to baby sit 4 children for 4 hourss
Answer:
i beleve 26 or 48
good luck
yo im timed please help!! at the top it says "car A is traveling east at a steady speed of 45 mph. after 2 hours it is 100 miles east of Johnstown . car B is traveling east on the same road. its distance east of Johnstown is represented by the graph" il give 20 more points if you're correct
Answer:
it could be C or a
Step-by-step explanation:
more likey c be sorry if it's wrong
this table shows a liner relationship. based on the information in this table. which equation can be used to model the relationship between x and y?
A) y =3x
B) y =85x
C) y = x + 3
D) y = 3x + 255
i think it is c if its wrong i apologize.
AYYYYYYYYYYYYYYOOOOOOOOOOOOOOOOOOO
Get Ya free 25
Answer:
Ok
Step-by-step explanation:
What's 4/5 as a percentage?
Answer:
80%
Step-by-step explanation:
% is out of 100 so make the denominator of 4/5 to be 100:
4/5 times 20/20 = 80/100 = 80%
Answer:
80%
Step-by-step explanation:
4 divided by 5 equal .8
.8 x 100 equals 80
It's multiplied by 100 because usually percentages are out of 100.
OR
You can move the decimal in .8 to 2 space to the right
please help ASAP!!!!!!
IS THIS A FUNCTION AND WHICH ONE?! VEIW PICTURE
Answer:
A and B are functions but C is not
Step-by-step explanation:
a function has one y value to every x value.
I’ll mark you brainlist if you get the right answer please help!
Answer:
it would probably be 56
Step-by-step explanation:
Mr Mason asks 240 year 11 students what they want to do next year. 15% of the students want to go to college. ¾ of the students want to stay at school. The rest of the students do not know. Work out the number of students who do not know.
Answer:
Number of students who do not know = 24
Step-by-step explanation:
Year II students = 240
15% of the students want to go to college.
Number of year II students who wants to go to college = 15% of 240
= 15/100 × 240
= 0.15 × 240
= 36
¾ of the students want to stay at school.
Number of students who wants to stay at the school = 3/4 × 240
= (3 × 240) / 4
= 720 / 4
= 180
Number of students who do not know = Total year II students - Number of year II students who wants to go to college - Number of students who wants to stay at the school
= 240 - 36 - 180
= 24
Number of students who do not know = 24
can yall help me or not?
Answer
desktop for 1st because it sold less computers and made more money.
for 2nd laptops 1.53 and computer 4.34
Step-by-step explanation:
Find the missing measurements.Use 3.14 for Pi. Round all the answers to the nearest hundreth
Answer:
R=5.0095
D=25.0955
Step-by-step explanation:
C=r^2(3.14)
C=d(3.14)
78.8/3.14=d
Square root diameter to get radius.
Solve using the quadratic formula x^2-12x+5=0
Answer:
x=6+[tex]\sqrt{x}[/tex]31
convert the word three and five tenths into a fraction
Your answer would be 3 5/10. (3 and 5/10).
if the scientific notation is 9.63x10^-3 what would it look like in standard form? MARKING BRAINLIEST!!!!
Answer:
.00963
Step-by-step explanation:
Since its 10^-3, the decimal point moves to the left 3 times. hope this helped :)
Give the equation in slope intercept form for each representation. Tell me if you can’t see the pic at the top.
what is the answer?
Answer:
A S A
Step-by-step explanation:
In ΔACE & ΔBCD,
∠A ≅ ∠B {Given} Angle
AC = BC {Given} Side
∠ACE = ∠BCD { Reflexive property} Angle
ΔACE ≅ ΔBCD ------>A S A Property
Please help me with this .
Answer:
x=4
Step-by-step explanation:
It's a parallel line so the equation is
100+19x+4=180
19x=180-100-4
19x=76
x=76/19
x=4
Answer: x = 4
Step-by-step explanation: The 2 angles are same-side interior angles, which are supplementary, and supplementary angles add up to 180, so we know that 19x + 4 = 80.
- 4. -4
19x = 76
/19. /19
X = 4
a sphere has a radius r=12 inches. What is it’s approximate volume
Answer: 7238.28
Step-by-step explanation:
What is it will mark Brainliest
Answer:
1
Step-by-step explanation:
find the equation of the line . PLEASE HELP
Two companies rent moving trucks. Pack and Go charges a $39.95 flat fee, and $0.45 for every mile driven. U-Drive charges a $59.95 flat fee, and $0.35 for every mile driven. At how many miles is the cost of the truck rentals the same?
Answer:
The indifference point is 200 miles
Step-by-step explanation:
First, we need to establish the total cost formula for each company:
Pack and Go:
Total cost= 39.95 + 0.45x
x= miles driven
U-Drive:
Total cost= 59.95 + 0.35x
x= miles driven
Now, we equal both formulas and isolate x:
39.95 + 0.45x = 59.95 + 0.35x
0.1x = 20
x= 200 miles
The indifference point is 200 miles
Answer:
A is answer 1/ 39.95 + .45x = 59.95 + .35x
B is answer 3/ miles driven
C is 3 /200
Step-by-step explanation:
Got 100% on edge
A grandparent deposits $3,000 each year into an annuity that pays 8% interest. Find
the future value at the end of 10 years.
PLEASE HELP FOR BRAINLEIST
Answer:
25.) Slope of AB = 5
Slope of CD = -1/5
Perpendicular
26.) Slope of EF = -3/5
Slope of GH = -3/5
Parallel
Step-by-step explanation:
Use this formula to find slope. [tex]\frac{y2 - y1}{x2 - x1}[/tex]
Parallel lines have the same slope
Perpendicular lines have the opposite reciprocal and sign
25.)
Plug in AB slope is 5
2 - 7/ 3 - 4 = -5/-1 = 5
Plug in for CD slope is -1/5
3 - 4/ 2 - -3 = -1/5 = -1/5
The lines AB and CD are perpendicular because they have opposite reciprocals and opposite signs.
26.)
Plug in EF slope is -3/5
1 - 4/ 3 - -2 = -3/5 = -3/5
Plug in GH slope is -3/5
-5 - -2/ 4 - -1 = -3/5 = -3/5
The lines EF and GH are parallel lines because they have the same slopes.
Hope this helps ya!
Answer:
what the other person said
Step-by-step explanation:
you were already saved just give them brainliest now
what is 20r^2+11r-3=0 for all real solutions?
please answer fast
Answer:
r=0.2
r= -0.75
Step-by-step explanation:
if im wrong im sorry
Write an equation of the direct variation (the line has a y-intercept of (0,0)) that includes the point (3,18).
Desmos Graphing Calculator
Algebra I STAAR Formula Chart
Calculator
Y=12
y = -6x
y 63
Answer:
b
Step-by-step explanation:
Eliot needs to replace a window that is in the shape of a
semicircle.
K 1.5 ft
>
What is the area of the window? Use 3.14 for 1. Round your
answer to the nearest hundredth of a square foot.
353.25
a=(3.14*15^2)/2
a=706.5/2
a=353 sq in
Find that x and y intercept 4x-5y=40
Answer:
x intercept: 10, y intercept: -8
Step-by-step explanation:
make into y = mx + b
4x = 5y + 40
4x - 40 = 5y
y = 4/5x - 8
plug in 0 for x, to find y intercept
y = -8
plug in 0 for y, to find x intercept
0 = 4/5x - 8, x = 10