Answer:
Original Ratio: 100:200
Divide both sides by 100: 1:2
The ratio 1:2 cannot be simplified further, so 1:2 is he correct answer.
Let me know if this helps!
The ratio of boys to girls at the valley high school is 3:2. The school has 900 students. How many boys are at the school?
Answer:
let the no. of boys be 3x and girls be 2x
And according to the question
2x+3x is equal to 900
Step-by-step explanation:
and solve this equation...
hope this helps..
7/52 as a mixed number
Answer:7
Step-by-step explanation:
Answer:
[see below]
Step-by-step explanation:
[tex]\frac{7}{52}[/tex] is a proper fraction. Therefore, it cannot be written as a mixed number.
If you meant [tex]\frac{52}{7}[/tex]:7 can go into 52 7 times with 3 'parts' remaining.
This means that 7 is the whole number and the fraction is 3/7.
[tex]\frac{52}{7}=7\frac{3}{7}[/tex]
Hope this helps.
error analysis: describe and correct the error in solving the equation.
1) the only solution of the equation x^2+6x+9=0 is x=9
PLEAS HELP ASAP SOLVE BOTH PROBLEMS IM GIVING 80 POINTS! NO SPAM
answer format: just say a, b, c, or d for both questions; no explanation needed.
question 1:Which of the following is a pair of equivalent radical expressions?
A. √45 and 3√15
B. √75 and 3√5
C. √54 and 9√6
D. √180 and 3√20
Question 2: image attached.
Answer:
C
Step-by-step explanation:
Answer: C for the first one and B for the second one
Step-by-step explanation:
hope it helps you
please help with all 3 of those please
Answer: 1. x = 32, 2. x = 16, 3. x = 77
Step-by-step explanation: All of these angles are 90 degree angles, therefore by subtracting the known term from 90, you are able to find the value of x. I hope that this helps :)
You rent an apartment that costs $ 1400 $1400 per month during the first year, but the rent is set to go up $ 190 $190 per year. What would be the monthly rent during the 6th year of living in the apartment?
Answer:
$2540
Step-by-step explanation:
Given data
Cost per month=$1400
Increase per year=$190
Time = 6 years
Let the total rent per month be y
Hence, the expression for the monthly rent after 6 years is
y= 1400+190(6)
y= 1400+1140
y=$2540
A researcher posts a newspaper advertisement offering $10 in exchange for participation in a short study. The researcher accepts the first 10 people who respond to the advertisement. Which of the following statements is true about the sample? (5 points) It is not a valid sample because it is only a short study. It is a valid sample because money is offered to participants. It is a valid sample because the first 10 people were selected to participate. It is not a valid sample because it is not a random sample of the population.
Answer:
the third one
Step-by-step explanation:
do you need and explanation
HELP PLZZZZ!!!!!!!!! will mark brainlest
Answer:
(7,-8)
Step-by-step explanation:
just count the x and y axis
Brillianst please!!!
Find the difference.-3.2 - (-4) *
1 point
7.2
-7.2
0.8
-0.8
Answer:
do you like harry styles
Step-by-step explanation:
pog champ
What is the solution to the equation 9(x − 2) = 27? (1 point) x = 2.5 x = 0.5 x = −0.5 x = 3.5
Answer:
x = 5
Step-by-step explanation:
9(x - 2) = 27
9x - 18 = 27
+18 +18
9x = 45
/9 /9
x = 5
The angle measurements in the diagram are represented by the following expressions.
A = 8x+ 78°
B = 2x + 114
B=
Answer:
126
Step-by-step explanation:
Khan is never wrong :3
what is the value of x and y if the quadrilateral is a parallelogram
(4 × 10 –10)(3 × 104)
Answer: 9360
Step-by-step explanation:
1) 10 (4 - 1) x ( 3 x 104 )
2) 10 (4-1) x 312
3) 10x3x312
=9360
Hope this helps!
A scientist mixes water (containing no salt) with a solution that contains 35% salt. She wants to obtain 105 ounces of a mixture that is 15% salt. How many ounces of water and how many ounces of the 35% salt solution should she use?
Answer:
60 oz of water to add
45 oz of 35% salt solution should be used
Step-by-step explanation:
Let x = amt no. ounces in the first solution
and 105 - x = amt no. of ounces in the second solution
Ist solution contains 0% salt
2nd solution contains .35(105 - x) salt
.15(105= amt of salt in mix
So.
amt of salt in 1st solution + amt of salt in 2nd solution = amt of salt in the mix
0 + .35(105 - x) = .15(105)
Let's get rid of the fractions by multipying thru the equation by 100
35(105 - x) = 15(105)
3675 - 35x = 1575
-35x = -2100
x = 60 oz of water to add
105 - 60 = 45 oz of 35% salt solution should be used
please help! Simplify the polonomial!
Answer:
Step-by-step explanation:
(2[tex]x^{2}[/tex]+3)(x+4)
2[tex]x^{3}[/tex]+8[tex]x^{2}[/tex]+3x+12
Please help me as soon as possible, I'LL GIVE BRAINLIEST !
Answer: -10 also your welcome
pay ITS TIVE
3. Bonolo ran a 10 km race. Her average speed was 6 km per
hour. How long did it take her in minutes to complete the race?
working days. .
Answer:
km per min
Step-by-step explanation:
6km ÷ 60 = 0.1
Bonolo ran 0.1 km per min
it takes 100 mins= 0.1×10
100 mins means 1 hour 40 min
As shown in the diagram below, the radius of a cone is 2.5 cm and its slant height is 6.5 cm
Answer:
multiple but if that dont work ion know what to tell you
Give your answer as a mixed number. 2 6/7 ÷ 2/3 =?
2 6/7 ÷ 2/3
= 20/7 ÷ 2/3
20/7 × 3/2
= 60/14
reduce to it's lowest term
30/7 = 4 2/7
The price of a gallon of unleaded gas was 2.84 yesterday. Today, the price rose to 2.90 . Find the percentage increase. Round your answer to the nearest tenth of a percent.
A line that includes the point (1, 10) has a slope of 6. What is its equation in slope-intercept
form?
Answer:
y = 6x + 4Step-by-step explanation:
The point-slope form of the equation that describes the line with a slope of m and including the point (x₀, y₀) is: y - y₀ = m(x - x₀)
m = 6
(1, 10) ⇒ x₀ = 1, y₀ = 10
Therefore:
y - 10 = 6(x - 1) ← the point-slope form
y - 10 = 6x - 6 {add 10 to both sides}
y = 6x + 4 ← the slope-intercept form
Which graph below represents exponential decay
Least Value {15, 12, 21, 18, 25, 11, 17, 19, 20}
Answer:
11
Step-by-step explanation:
The number with the last value in this data set is 11. All the other numbers are greater than it in terms of numerical value. Imagine if all the numbers were represented through pennies. 11 would have the least amount of pennies.
what is 7 plus 5 and i want you to say that 7 plus 5 equals
Answer:7+5=12
Step-by-step explanation:
Answer:
lol ok 7+5 = 12 you welcome I guess...
Step-by-step explanation:
The numerator of a fraction is 2 less than the denominator. A new fraction can be formed by adding 5 to the denominator and doubling the numerator. The product of the original fraction and the reciprocal of the new fraction is 1/4. What is the original fraction?
Answer:
[tex]\frac{6}{5}[/tex]
Step-by-step explanation:
let the denominator of the original fraction be x, then
[tex]\frac{x-2}{x}[/tex] ← original fraction
Then
[tex]\frac{2(x-2)}{x+5}[/tex] ← new fraction
The product of original and reciprocal of new is
[tex]\frac{x-2}{x}[/tex] × [tex]\frac{x+5}{2(x-2)}[/tex] ← cancel (x - 2)
= [tex]\frac{x+5}{2x}[/tex] = [tex]\frac{1}{4}[/tex] ( cross- multiply )
4(x + 5) = 2x
4x + 20 = 2x ( subtract 2x from both sides )
2x + 20 = 0 ( subtract 20 from both sides )
2x = - 20 ( divide both sides by 2 )
x = - 10
Then original fraction
[tex]\frac{x-2}{x}[/tex] = [tex]\frac{-12}{-10}[/tex] = [tex]\frac{6}{5}[/tex]
Simplify the question above
Answer:
[tex]1 + \frac{3}{x} [/tex]
Step-by-step explanation:
1) Rewrite x² - 9 in the form a² - b² where, a = x and b = 3.
[tex] \frac{ {x}^{2} - {3}^{2} }{ {x}^{2} - 3x} [/tex]
2) use difference of squares: a² - b² = ( a + b ) (a - b).
[tex] \frac{(x + 3)(x - 3)}{ {x}^{2} - 3x} [/tex]
3) Factor out the common term x.
[tex] \frac{(x + 3)(x - 3)}{ x(x - 3)} [/tex]
4) Cancle out x - 3 .
[tex] \frac{x + 3}{x} [/tex]
5) Simplify.
[tex]1 + \frac{3}{x} [/tex]
Therefor, the answer is 1 + 3/x.
Answer:
1 + 3 ÷ x
Step-by-step explanation:
Just doing my streak. All credit goes to the person who answered first
Explain the algebra 5a - 9a - (-2a) =
Hello!
5a - 9a - (-2a) =
= 5a - 9a + 2a =
= -4a + 2a =
= -2a
Good luck! :)
if you have $161.98 and you buy something for $19.99, how much do you have left?
Answer:
$141.99
Step-by-step explanation:
$161.98 - $19.99 = $141.99 left
(All you needed to do was subtract.)
A cyclist cycles a distance of 44 miles in a time of 4 hours.
What is her average speed?
Answer:
11 miles an hour
Step-by-step explanation:
44 miles divided by 4 hours would equal 11 miles in one hour, meaning her average speed would be 11 miles an hour
Answer:
The average speed is 11
Step-by-step explanation:
You would have 44 on top and 4 on the bottom(44/4)
then you would divide the 4 by four and the 44 by four to get 11 miles an hour.
Practice 4 Find the measure of
Answer:
113
Step-by-step explanation:
53 is one of the angles in the triangle
Then put 60+53+y=180 you get y=67
x+y=180 you get x=113