Answer:
A=50
Step-by-step explanation:
assuming you mean 100-A+20-70=0
you need to solve for A, which means add all your numbers together and isolate A.
-A+50=0
A=50
Answer:
The answer is 50 - a.
Step-by-step explanation:
1) Collect like terms.
[tex] - a + (100 + 20 - 70)[/tex]
2) Simplify.
[tex]50 - a[/tex]
Therefor, the answer is 50 - a.
What’s the answer???????
Answer:
43x+39
Step-by-step explanation:
(5)(9x)+(5)(6)+−2x+9
=45x+30+−2x+9
=45x+30+−2x+9
=(45x+−2x)+(30+9)
=43x+39
(if this helps please give brainliest and 5 stars thanks)
Answer:
43x + 39
Step-by-step explanation:
5 ( 9x + 6 ) - 2x + 9
Firstly, open up the brackets.
= 45x + 30 - 2x + 9
Now bring the like term together and simplify.
=45x - 2x + 30 + 9
= 43x + 39
Anything raised to a power of zero is always:
Answer:
1
Step-by-step explanation:
u cant really multiply anything so it 1
Makenzie leaves her home at 10am. She has to be at her grandmother's house, which is 42 miles away. The
speed limit is 65mph on the highway between their houses. Can she make it to her grandmother's house by
10:30 without speeding?
Answer:
no
Step-by-step explanation:
will take approximately 1-2 hours or even longer
In the given diagram(see image) , TAX and TBY are tangents to the circle and C is a point on the major arc.
Question :
If <CAX = 65° , <CBY = 76° , Calculate <ATB.
Answer:
∠ATB = 102°
Step-by-step explanation:
Since ∠CBY is less than 90°, CB is not a diameter.
I did this in my head so I drew a sketch to show that around about way I did it. sketch attached:
I drew a third line from X to Y that is tangent to the circle at C.
Because each pair of tangent lines to a common point are equal, we have made three isosceles triangles.
Now we know 2 of the three angles to ΔXYT, 180 - 50 - 28 = 102° for ∠ATB
Answer:
102°Step-by-step explanation:
Given
∠CAX = 65° , ∠CBY = 76°To find
∠ATBSolution
Refer to attached picture
∠CAX= ∠CBA as same arc intercepted ∠CBY = ∠CAB as same arc interceptedTAX is a straight angle and:
∠TAB = 180° - (∠CAX + ∠CAB) = 180° - (65° + 76°) = 39°∠TBA = ∠TAB as two tangents intersect at same distance, their opposite angles are therefore same. ΔATB is an isosceles triangle.
∠ATB = 180° - 2*39° = 102°Can someone help me with question 20 pls
Answer:
6x^3-12x^2+3x-3
Step-by-step explanation:
Answer:
6x³ - 12x² + 3x - 3
Step-by-step explanation:
f(x) - g(x)
= (6x³ - 3x² + 4x - 4) - (9x² + x - 1)
= 6x³ - 3x² + 4x - 4 - 9x² - x + 1
= 6x³ - 3x² - 9x² + 4x - x - 4 + 1
= 6x³ - 12x² + 3x - 3
Find the volume of the regular hexagonal pyramid if the lateral edge is 15 feet.
Answer:
Volume of the given pyramid = 1122.37 cubic feet
Step-by-step explanation:
Volume of the regular hexagonal pyramid = [tex]\frac{1}{3}(\text{Area of the base})(\text{Base})[/tex]
Measure of internal angle of a polygon = [tex]\frac{(n-2)\times 180}{n}[/tex]
Here, n = number of sides of the polygon
For a hexagon, n = 6
Measure of interior ∠C = [tex]\frac{(6-2)\times 180}{6}[/tex]
= 120°
Measure of ∠BCD = [tex]\frac{120}{2}[/tex]
= 60°
By applying tangent rule in ΔCED,
tan(∠ECD) = [tex]\frac{\text{Opposite side}}{\text{Adjacent side}}[/tex]
tan(60°) = [tex]\frac{DE}{CE}[/tex]
[tex]\sqrt{3}=\frac{DE}{6}[/tex]
DE = [tex]6\sqrt{3}[/tex] feet
And cos(60°) = [tex]\frac{EC}{CD}[/tex]
[tex]\frac{1}{2}=\frac{6}{CD}[/tex]
CD = 12 feet
Area of ΔBCD = [tex]\frac{1}{2}(\text{Base})(\text{Height})[/tex]
= [tex]\frac{1}{2}(6\sqrt{3})(12)[/tex]
= [tex]36\sqrt{3}[/tex] feet
Area of hexagonal Base of the pyramid = [tex]6(36\sqrt{3})[/tex]
= 216√3 square feet
Since, lateral height of the pyramid (AC) = 15 feet
By applying Pythagoras theorem in ΔADC,
AC² = AD² + CD²
(15)² = AD² + (12)²
AD = [tex]\sqrt{225-144}[/tex]
AD = 9 feet
Volume of the given pyramid = [tex]\frac{1}{3}(216\sqrt{3})(9)[/tex]
= 648√3 cubic feet
= 1122.37 cubic feet
On Friday, Matt earned $36 walking dogs for 3 hours after school. On Saturday, he walked dogs for 8 hours. How much money did Matt earn on Saturday? Solve using unit rates.
Answer:
$96
Step-by-step explanation:
$36/3= $12 per hour
$12 * 8 = $96
I Need help ASAP.(please )
please please help me with number 28 i’ll mark b
Answer:
both
Step-by-step explanation:
given sss, you will need to use Law of Cosines.
However, one you get one of the angles, the easiest way to solve for the second angle is to just use law of sines.
Help with this question picture below
Answer:
I think it is B,D, and E. Hope that helps.
Eunice is planning her vacation. She wants to visit 9 landmarks and eat at 16 different restaurants. She will visit one landmark
and eat at one of the restaurants on her first day of vacation.
How many possible combinations of a landmark and a restaurant are there for her to choose from?
Answer:
the answer 144 (hope this helps :) )
Step-by-step explanation:
Answer:
the answer 144
Step-by-step explanation:
Ben's account balance is $27.32. Cam's account balance is -$18.99
Which account matches each description?
Ben's account Cam's account
Has a greater balance
Has more debt
-27.32
-18.99
+
0
Note: Banks use negative balances to represent an account with debt, and positive balances to represent an
account that contains value.
Sorry it cut of on the end I put everything here
Answer:
Cam has a greater balance and Ben has more debt.
Answer: Ben has more debt
Cam has a greater balance
Step-by-step explanation:
A store purchased a plasma screen TV for $770 and marked it up 150%. During a sale, the store marked it down 20%. What was the discount price on the plasma screen TV?
Answer:
1540
Step-by-step explanation:
First find the new price after the markup
The markup is
770 * 150%
770 * 1.5
1155
Add this to the original price
770 + 1155
1925
Now find the discount
1925*20%
1925*.20
385
Subtract this amount from the 1925
1925-385
1540
The final price is 1540
Answer:
Solution given:
cost price [c.p] of TV =$770
MP=c.p+ 150% of c.p=$770+150/100×770=$1925
discount [D]=20%
now
discount amount=D% of MP=20/100×1925=$385 is your answer.
$385 was the discount price on the plasma screen TV.
can somebody help I am really bad at this
Answer:
40 feet
Step-by-step explanation:
4+4+8+4+12+8
= 40 ft.
Man Street Florist charges
$18 for a dozen roses and a
$5 delivery fee. Blooms and
Bouquets charges $20 for a
dozen roses and a $1
delivery fee. How many
dozen roses will need to be
purchased for the price to
be the same at both
florists? What is the cost?
Answer:
2 dozens, $41
Step-by-step explanation:
Given data
Man Street Florist charges
$18 for a dozen roses and a
$5 delivery fee
let the number of dozens be x
and the total charge for x dozens be y
hence
y= 18x+5--------------1
Blooms and Bouquets
charges $20 for a
dozen roses and a $1
delivery fee.
let the number of dozens be x
and the total charge for x dozens be y
hence
y= 20x+1 -------------2
Equate 1 and 2 we have
18x+5=20x+1
20x-18x= 5-1
2x= 4
x= 4/2
x= 2
Hence the number of dozens is 2
the cost is (put x= 2 in eqn 1 or 2)
y= 20(2)+1
y= 40+1
y= $41
Write an equation that could be used to find the value of x using the interior angles of ∆BDC, then solve it.
9514 1404 393
Answer:
x = 16
Step-by-step explanation:
Either or both of the right triangles can be used to find x. Or, triangle ABC could be used. All numbers are assumed to be degrees.
Using ∆ABD
55 +90 +2x+3 = 180
2x = 32 . . . . . . subtract 148
x = 16
Using ∆BCD
50 +90 +2x+8 = 180
2x = 32 . . . . . . subtract 148
x = 16
Using ∆ABC
55 +(2x +3) +50 +(2x +8) = 180
4x = 64 . . . . . . . subtract 116
x = 16
Apple juice and cranberry juice have been mixed in the ratio of 4:5. If the price of apple juice is 45 cents per pint and the price of cranberry juice is $0.8 per pint, what should the price of one pint of the mixture be?
Answer:
$0.24
Step-by-step explanation:
The computation of the price of the one pint of the mixture is shown below:
Since the ratio of apple juice and cranberry juice is 4:5
And, the price of apple juice is 45 cents i.e. = 0.45 × 4 ÷ 9 = 0.2
Also the price of cranberry juice is $0.8 = $0.08 × 5 ÷ 9 = 0.04
SO, the price of one pint of the mixture is
= 0.2 + 0.04
= $0.24
Answer:
$0.24444
Step-by-step explanation:
the side lengths of a triangle are 6,8 and 10 is this a right triangle
Answer:
Hi friend I am new can you show me how post question pls
Step-by-step explanation:
Find the horizontal asymptote.
y
=
2x
X - 3
y = [?]
Enter
GUYS HELP HELP HELP PLEASE HELP
what is the area of this figure
Answer:
174.5m
Step-by-step explanation:
So we have to break the shapes down to triangle, rectangle and the small rectangle
Area of rectangle=WxL
Area of triangle= (BxH)÷2
triangle=
(23x11)÷2
=253÷2
=126.5m
rectangle=
9x19
=28m
square#2(the small one)=
5x4
=20m
All:
20+28+126.5
=174.5m
In ΔNOP, the measure of ∠P=90°, the measure of ∠N=7°, and NO = 3.4 feet. Find the length of OP to the nearest tenth of a foot.
Answer:
0.4
Step-by-step explanation:
I did it on deltamath
Answer:
x=0.4144≈0.4 feet
Step-by-step explanation:
Deltamath
The city was painting a 6 mile section of street. On the first day the painted 2 1/6 miles. On the second day they painted 1 2/3 miles. How much would they have to paint on the third day to complete the painting job?
Answer:
[tex]2\frac{1}{6}[/tex]
Step-by-step explanation:
→ Add the distances painted
[tex]2\frac{1}{6} +1\frac{2}{3} =2\frac{1}{6} +1\frac{4}{6} =3\frac{5}{6}[/tex]
→ Minus from 6 to find the third day's work
[tex]6-3\frac{5}{6} =\frac{6}{1} -\frac{23}{6} =\frac{36}{6} -\frac{23}{6} =\frac{13}{6} =2\frac{1}{6}[/tex]
Help please please this is a big grade !!
Answer:
10=480 cupcakes 864=18 boxes 24=1152 cupcakes 1536=32 boxes
Step-by-step explanation:
As an estimation we are told 5 miles is 8 km.
Convert 32.5 miles to km.
Answer:
52 km
Step-by-step explanation:
Given, 5 miles is 8km.
So, 1 mile will be (8/5) km.
Now, 32.5 miles will be (8/5) x 32.5 = 52 km
Please, if anyone knows help me, I need a lot of help in this activity.
Answer:
Step-by-step explanation:
Perimeter of the given polygon = n + 2 + 3 + 4 + n + 2 + 3 + 4
= 2(n + 2 + 3 + 4)
= 2(n + 9) units
Area of the composite figure = Area of rectangle A + Area of rectangle B + Area of rectangle C
= (3 × 4) + (n ×2) + (2 × 3)
= 12 + 2n + 6
= 2n + 18
= 2(n + 9) units²
Therefore, perimeter of the given figure = Area of the figure
What is the probability of drawing a queen or a heart from a standard deck of 52 cards?
Reminder: the four card families
Pleasee helpppppp!!
Answer:
4/13
Step-by-step explanation:
4 queens and 13 hearts
4/ 52 + 13/52 - 1/52
16/52
4/13
Answer:
Step-by-step explanation:
There are 13 hearts in 52 cards. C From above, P(Queen)=4/52 and P Heart=13/52, the queen of hearts is in both categories so we have to subtract 1/52 so we don't double count.
Rachel rode her bike 3(3/4) times on a trail around a lake that is 6 miles long. Which statement is true?
Answer:
beats me
Step-by-step explanation:
ask urself
Tristan wants to ride his bicycle 27 miles this week. He has already ridden 9 miles. If
he rides for 6 more days, which tape diagram could be used to represent the context if
2 represents the average number of miles he would have to ride to meet his goal?
Answer:
he would have to ride for 3 miles each of the six days left to meet his goal
Step-by-step explanation:
plzz help mehhh plz :( ill mark you
Answer: 108
Step-by-step explanation: bottom figure=60 because 10x3x2=60
top one=48 4x4x3 so 48 60+48=108
plz mark me brainliest