Given:
Violinists : Cellists = 7:3.
Number of violinists in the school orchestra = 21
To find:
The combined number of cellists and violinists.
Solution:
Let the number of violinists and cellists in the school orchestra are 7x and 3x respectively.
Then, combined number of cellists and violinists is
[tex]\text{Combined number of cellists and violinists}=7x+3x[/tex]
[tex]\text{Combined number of cellists and violinists}=10x[/tex] ...(i)
Number of violinists in the school orchestra = 21
[tex]7x=21[/tex]
Divide both sides by 7.
[tex]x=3[/tex]
Now, the combined number of cellists and violinists is
[tex]\text{Combined number of cellists and violinists}=10(3)[/tex] [Using (i)]
[tex]\text{Combined number of cellists and violinists}=30[/tex]
Therefore, the combined number of cellists and violinists is 30.
this is the choices
88
70
110
120
Answer:
110
Step-by-step explanation:
as a trapezoid contains of angles that add up to 360 .....and the top angles are equal and the bottom angles are equal ...therefore >v equals to 70 and w as well and x are equal to 110 each
solve for x:
x/2 + x/5 = 1
Answer:
x=10/7
Step-by-step explanation:
Answer:
X= 10/7
Step-by-step explanation:
I hope this works
Solve the inequality. Please help answer needed fast!! Will give BRAINIEST ANSWER 10 POINTS!!!
Answer:
lol
edited: x is negative
Step-by-step explanation:
1/2=2m then what is m?
Answer:
m = 1/4 or 0.25
Step-by-step explanation:
1/2 = 2m
[Symmetric property of equality]
2m = 1/2
÷2. ÷2
[Division property of equality]
m = 1/2 ÷ 2
m = 1/4
________
1/2 = 2m → 1/2 = 2(1/4) → 1/2 = 2/4 →
1/2 = 2÷2/4÷2 → 1/2 = 1/2
A store sells a package of 25 trading hearts for $5.25 use pencil and paper explain how you can tell that the unit price per card is less than $1 what is the unit price per card.
Answer:
Unitary cost per card= $0.21
Step-by-step explanation:
Giving the following information:
Number of cards per packecge= 25
Total cost per package= $5.25
To calculate the unitary cost of each card, we need to use the following formula:
Unitary cost per card= total cost / number of cards per package
Unitary cost per card= 5.25 / 25
Unitary cost per card= $0.21
Destiny earns $0.75 for every 1/4 hour she spends doing chores. How long o points
would it take Destiny to earn $12.00?
2 hours
4 hours
8 hours
16 hours
Answer now please
Answer:
8 hours
Step-by-step explanation:
i hope it's helpful and 8h is the real answer
ANSWER QUICK HANKS I WILL GIVE BRAINLIEST
Answer:
2 2/9
Step-by-step explanation:
Answer: 2 2/9
Step-by-step explanation:
16/9÷4/5=80/36 simp 2 2/9
YOU GUYS ARE MEAN! AND AREN’T HELPING ME AND IM WILLING TO GIVE 40POINTS! LOOK AT THE PICTURE ATTACHED!
Answer:
[tex]x = 5[/tex]
Step-by-step explanation:
[tex] {2}^{2x - 3} + 52 = 180[/tex]
[tex] {2}^{2x - 3 } = 128[/tex]
[tex] {2}^{2x - 3} = {2}^{7} [/tex]
[tex]2x - 3 = 7[/tex]
[tex]2x = 10[/tex]
[tex]x = 5[/tex]
If a new surfboard in North Carolina costs $320 and the sales tax is 4.75%, what
was the total cost of the surfboard?
$335.20
$304.80
$321.25
$342.40
Equivalent expression for m-(8-3m)
Answer:
4m-8
Step-by-step explanation:
answer
Answer:
4m - 8
Step-by-step explanation:
Given expression,
→ m - (8 - 3m)
Simplifying the expression,
→ m - (8 - 3m)
→ m - 8 + 3m
→ 4m - 8
→ 4(m - 2)
Hence, answer is 4m - 8.
Solve m+4>9
The solution is __
Answer:
m>5
Step-by-step explanation:
Answer:
m > 5
Step-by-step explanation:
m+4>9
m > 9 - 4
m > 5
or
m ∈ 《5 , +∞》
which expression are equivalent to 2(4f+2g)
Answer:
8f+4g
Step-by-step explanation:
Help plz I’m giving a lot of points
And no nonsense answers plz
Answer:
it is a positive number because she was rising if she had been going down then the number would have become negative.
Step-by-step explanation:
Team Damon or team Stefan Or team Kai I’m team ✨Damon✨and ✨Kai✨all the way
solve for x.
3x - 8x + 2 = 17
X=
Answer:
-3
Step-by-step explanation:
3x-8x=17-2
3x-8x=15
-5x=15
-x=15/5
-x=3
x=-3
Find the GFC of 16 and 80
Answer:
It is 16
Step-by-step explanation:
Hope this helped have an amazing day/month/year!
Evaluate the expression.
−4(−2) − 4 − 2 =
Answer:
2
Step-by-step explanation:
-4 x -2 is 8. -4 -2 is -6. 8-6 is 2.
Answer:
8-4-2=2
It was +8 because the multiplication of two negatives will give u a positive
Step-by-step explanation:
Last year a bag of Farmer Bill's seed corn cost $140. This year that price has increased by 60%. How much will a bag of seed corn cost Farmer Bill this year? *
Please help, I'm stuck...
it looks so simple yet I don't get how to do it. Can anyone help explain?
(picture of question attached)
source: Pearson/Savvas Realize
Andres has $7 he needs $50 to buy a skateboard each week his grandmother pay him $4 to complete some chores
Answer:
she has to give him 4 dollars each week for 11 weeks since he already has 7 dollars.
Step-by-step explanation:
4 x 11 = 44 +7 = 51 so now he had enough for a skateboard.
In ΔQRS, the measure of ∠S=90°, the measure of ∠Q=54°, and RS = 26 feet. Find the length of QR to the nearest tenth of a foot
SOH-CAH-TOA
sin Q = Opposite = 26
hypotenuse x
sin 54 = 26
x
x sin 54 = 26
x sin 54 = 26
sin 54 sin 54
x = 26 = 32.1378 ≈ 32.1 feet
sin 54
HELP PLEASE :( thank u
What is the value of the growth factor of the function?
A) 1/5
B) 1/3
C) 2
D) 6
Answer:
B
Step-by-step explanation:
Divide 18 by one third and see what ya get
then 6, then 2. BOOM!
Kate saved each week for 5 weeks and then spent $25. How much was she saving each week if she had $100 left at the end of 5 weeks and after spending $25? /3
Answer:
25 a week.
Step-by-step explanation:
100+25= 125
125÷5 = 25
What is the slope of the line shown below?
(3,9)
(-4,2)
Answer:
the slope of the line shown below is 1.
Whats the answer pls help
Answer:
The area of the lateral surface of the cube is 12.96 cm²
Step-by-step explanation:
The lateral surface area
4 × (1.8 cm)²
An objects lateral surface are the surfaces of the object that exclude the top and bottom surfaces
In a cube, the lateral surface are the vertically oriented (with respect to the base and the top which are then oriented horizontally) surfaces of the cube
Therefore, the lateral surface area of the cube consist of four vertically oriented equal sized faces, each with side 1.8 cm
The area of the lateral surface of the cube = The area of the four vertically oriented faces of the cube
∴ The area of the lateral surface of the cube = 4 × 1.8 cm × 1.8 cm = 12.96 cm.²
Tess studied for 2/3 of an hour on Monday and 1 1/2 hours on Tuesday. How much more time did she spend studying on Tuesday than on Monday?
Answer:
she spent 2 1\6 studying more on tuesday because you got to add
how do you solve this
(-4) + (+6)
Answer:
2
Step-by-step explanation:
-4+6=
6-4=
2
3(-1 - x) < -20 - 3x
on a number line
Answer:
[tex] - 3 - 3x \: < \: - 20 - 3 \\ - 3x < - 20 - 3 + 3 \\ - 3x < - 20 \\ x > - 20 \div 3[/tex]
Please help me complete this !! 12points
Answer:
1.
x1=1
x2=3
y1=5
y2=1
midpoint= (x1+x2/2, y1+y2/2)=(1+3/2,5+1/2)=(2,3)
2.
x1=2
x2=4
y1=4
y2=6
midpoint= (x1+x2/2, y1+y2/2)=(2+4/2,4+6/2)=(3,5)
3.
x1= -2
x2=4
y1=4
y2= -6
midpoint= (x1+x2/2, y1+y2/2)=(-2+4/2,4-6/2)=(1,-1)
4.
x1=0
x2=0
y1=3
y2=5
midpoint= (x1+x2/2, y1+y2/2)=(0/2,3+5/2)=(0,4)
5.
x1= -2
x2=2
y1= -6
y2=6
midpoint= (x1+x2/2, y1+y2/2)=(-2+2/2,-6+6/2)=(0,0)
6.
x1=1
x2=4
y1=4
y2=5
midpoint= (x1+x2/2, y1+y2/2)=(1+4/2,4+5/2)=(5/2,9/2)
7.
x1=-3
x2=-4
y1=5
y2=5
midpoint= (x1+x2/2, y1+y2/2)=(-3-4/2,5+5/2)=(-7/2,5)
8.
x1=5
x2= -4
y1=2
y2=6
midpoint= (x1+x2/2, y1+y2/2)=(5-4/2,2+6/2)=(1/2,4)