Answer:
70
Step-by-step explanation:
70 percent of 100 is [tex]\frac{70}{100}[/tex]
so [tex]\frac{70}{100}[/tex] × 100 students
= 70 students
The first term of an arithmetic progression is 80 and the common difference is -3. what is the greatest possible sum of the first n terms of this sequence, and for which value of n does it occur?
I need help with this question, in advance thank you :)
Answer:
S=157
Step-by-step explanation:
an= a1+(n-1)d
a2=80+(2-1)(-3)
a2=80-3
a2=77
Sn=(a1+an)*n/2
S2=(80+a2)*2/2
S2=(80+77)*1
S2=157
find the slope of the line through each pair of points
1. (-9,-20)(6,-15)
2. (13,-2)(6,15)
3. (8,6)(-2,-6)
4. (-19,19)(17,7)
Quick i will mark brainliest i need anwser by tommorow before 9am or a fail
Answer:
1. m = 1/3
2. m = -2.43
3. m = 1.2
4. m = -1/3
Which equation could be equivalent to 22 - 3?
Answer:
22 + (-3)
Step-by-step explanation:
Adding a negative is the same as subtracting a positive.
let me see some q,,,,,,,,,,,,,,,
Step-by-step explanation:
huh??????????????????
How many sides does a nonagon have?
sides
Answer:
9 sides due to the fact, the prefix nona means nine or ninth
Answer:Nine sides
Step-by-step explanation: have a good day :)
PLEASE HELP,, GIVING BRAINLIEST!!!!
What’s the value of y? Show your work.
Answer:
60
Step-by-step explanation:
7^2=7^2 +7^2 -2(7)(7).cos y
[tex]1/2 =cos y\\60 =y\\[/tex]
Help please it says round your answer to the nearest hundredth
Answer:
∠ B ≈ 62.73°
Step-by-step explanation:
Using the sine ratio in the right triangle.
sinB = [tex]\frac{opposite}{hypotenuse}[/tex] = [tex]\frac{AC}{AB}[/tex] = [tex]\frac{8}{9}[/tex] , thus
∠ B = [tex]sin^{-1}[/tex] ([tex]\frac{8}{9}[/tex] ) ≈ 62.73° ( to the nearest hundredth )
Write each algebraic expression in words.
Then evaluate each expression for n = 6.
a) 4n:
b) n + 8:
c) n/2:
d) 7 + 3n:
e) 10n – 15:
f) 50 – 8n:
Please help :(((
Factor 10z + 45.
i need help!
Answer:
5(2z +9)
Step-by-step explanation:
factor out 5 of 10z +45
1. Choose the word form for: 56.23 *
fifty six and twenty three thousandths
fifty six and two tenths
fifty six and twenty three hundredths
five hundred six and twenty three hundredth
Answer:
The third one
Step-by-step explanation:
50 Fifty 3 three . and 20 twenty 3three hundreths
HELP ASAP
Matthew made a fruit salad, in which the ratio of blueberries to red grapes is 8:6. If Matthew used 36 red grapes and the rest were blueberries. How many pieces of fruit are in Matthew’s fruit salad? [Type your answer as a number.]
Answer:
84 pieces of fruit
Step-by-step explanation:
The number of pieces of fruit are in Matthew’s fruit salad --> 48+36=84
Help please ill brainlist
Answer: a
Step-by-step explanation: i took the test
Are the lines 12x + 3y=-9 and -8x – 2y = 14 parallel?
Answer:
Yes, the lines are parallel.
Answer:
they are parallel
Step-by-step explanation:
slope of both line come 4
The distance a jet travels varies directly with the number of hours flown. A jet travels 1,350 miles in three hours. If the jet continues to travel at the same rate, how far will it fly in seven hours?
Answer:
3150
Step-by-step explanation:
1350/3= 450
1350+1350+450= 3150
Select all of the ratios that are equivalent to 6:3?
Answer: We can't see the ratios.
Step-by-step explanation:
Identify the slope from the equations y = -x -6
Answer:
The slope of the line is -1
I've attached a screenshot of a website that can solve function.
May I have brainliest please? :)
A recipe calls for 2 teaspoons
of sugar for every 3 cups of
flour. How much sugar will be
needed for 9 cups of flour?
Answer:
he is right
Step-by-step explanation:
Y’all I need help I need a good grade on this
Answer:
SLOPE IS -3
Step-by-step explanation:
4-7 over 0-(-1)
Write the recurring decimal 0.63as a fraction
Answer:
63/100, this can't further more simplified
Step-by-step explanation:
i hope it helped you please give me brainliest
two qualities, x and y, if x is doubled what happends to y?
Answer:
it gets doubled too bc if one quantity is doubled then the other is too
Step-by-step explanation:
find the slope of the table
Answer:
equation for slope:
y2-y1 / x2-x1
0- (-4) / 0 - (-5)
4/5 is your slope
Step-by-step explanation:
solve for x plsssssss
Answer:
x = 129º
Step-by-step explanation:
It will take some time to elaborate but start this way:
you see the triangle with the 58º and 57º? Now by rule, the sum of all angles ina triangle is 180º
so 57+58 = 115
to discover the other angle you just have to 180-155 = 65
Now that you know the 65º by rule the angle facing it is exactly the same, follow from there, solve all triangles until you get to x...
help find missing segment??
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Let x as the missing segment.
_________________________________
According to the Thales theorem :
[tex] \frac{26}{x} = \frac{12}{36} \\ [/tex]
[tex] \frac{26}{x} = \frac{12}{12 \times 3} \\ [/tex]
[tex] \frac{26}{x} = \frac{1}{3} \\ [/tex]
Inverse both sides
[tex] \frac{x}{26} = \frac{3}{1} \\ [/tex]
[tex] \frac{x}{26} = 3 \\ [/tex]
Multiply sides by 26
[tex]26 \times \frac{x}{26} = 26 \times 3 \\ [/tex]
[tex]x = 26 \times 3[/tex]
[tex]x = 78[/tex]
Thus the missing segment has a measure of 78 .
♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️♥️
12x-9=10x-15 Help me answer this please
Answer:
x = -3
Step-by-step explanation:
Given:
12x - 9 = 10x - 15
Now, let's add 15 to both sides of the equation.
12x + 6 = 10x
Now, let's subtract 12x from both sides of the equation.
6 = -2x
Now, let's divide both sides by -2.
-3 = x
Write the equation for the line that is parallel to the given line and that contains
the given point. Use the point-slope form of the equation of a line.*
(-3,4) y=-x-11
Answer:
x + y - 1 = 0
Step-by-step explanation:
y = -x - 11
therefore its slope is -1
x1= -3
y1 = 4
m = -1
from, y - y1 = m(x -x1)
y - 4 = -1(x + 3)
y -4 = -x -3
x + y -1 = 0
A school allots £2000 to spend on a trip to the theatre. Theatre tickets have a regular cost of £32 each and are on offer for 1 4 off. A train ticket for the day will cost £12 each. If 2 teachers and the maximum number of students attend, how much money will the school have left over?
Answer:
£20
Step-by-step explanation:
Given that:
Total amount alloted = 2000
Ticket cost = 32
Discount = 1/4 off
Hence, ticket price = 3/4 * 32 = 24
Train ticket cost = 12
Total cost per person = £(12 + 24) = £36
Hence, alloted amount / cost per person
= £2000 / £36
= 55.55
Total number that can attend = 2 teachers and 53 students
Change = £2000 - (£36*55)
= £20
A 2-column table with 3 rows. Column 1 is labeled Days, x with entries 3, 4, 5. Column 2 is labeled Miles, y with entries 771, 973, 1,175.
The Boden family is taking a road trip across the US. After initially driving for awhile, the Bodens decide to make a plan to drive a set number of miles each day. Days 3, 4, and 5 are displayed in the table. Assume the relationship is linear.
Identify how many miles per day the Boden family is planning to travel.
miles per day
Answer:
202 miles per day
Step-by-step explanation:
Answer:
165
Step-by-step explanation:
A 2-column table with 3 rows. Column 1 is labeled Days, x with entries 3, 4, 5. Column 2 is labeled Miles, y with entries 771, 973, 1,175.
The Bodens drove for awhile before they made a plan to drive a set number of miles each day. Days 3, 4, and 5 are displayed in the table. Assume the relationship is linear.
Determine the initial number of miles that the Boden family drove before they made their plan.
771 miles
367 miles
165 miles
135 miles
This is your correct answer 165, oops this is the wrong question sorry
Question- Solve for a
2a+b=x
Answer:
a = (x - b)/2
Step-by-step explanation:
2a + b = x
-b -b
2a = x - b
/2 /2
a = (x - b)/2
for ex:
x = 3
b = 2
a = ((3) - (2))/2 = 0.5
a = 0.5
2a + b = x
2(0.5) + 2 = 3
A mixture of 30 pounds of candy sells for $1.10 a pound. The mixture consists of chocolates worth $1.50 a pound and chocolates worth 90¢ a pound. How many pounds of the $1.50 chocolate were used to make the mixture?
If x represents the pounds of $1.50 chocolates used, then which of the following represents the pounds of 90¢ chocolates used?
x
30 - x
30
Answer:
10 pounds of the $1.50 chocolate were used.
30 - x represents the number of pounds of the 0.90 chocolate used.
Step-by-step explanation:
30 * 1.10 = 1.5x + 0.9 (30 - x)
33 = 1.5x + 27 - 0.9x
0.6x = 6
x = 10
Answer:
30 - x
Step-by-step explanation:
Sara owns a paint shop that makes custom paints. To make one gallon of a specialty color, she needs 4 royal blue units that each cost $b. She also needs 9 yellow units that each cost $y. A customer orders 4 gallons of this paint.
Sara uses the expression 4(4b + 9y) to find the total cost for the color units needed to make each gallon of paint.
Explain how to write an expression that is equivalent to the total cost expression. Then determine the total cost for the color units needed to make the paint if each royal blue color unit costs $0.30 and each yellow unit costs $0.10.