Number of boys number of girls 11:9 there is 124 more boys than girls work out the number of students at the school
Answer:
1240
Step-by-step explanation:
Number of boys to a girl is
x:y= 11:9
9x= 11y
There are 124 more boys in the schooll than girls
x= 124+y
Substitute 124+y for x
9(124+y)= 11y
1116+9y= 11y
1116= 11y-9y
1116= 2y
y= 1116/2
y= 558
Number of girls is 558
The number of boys can be calculated as follows
= 558+124
= 682
Hence the total number of students is
= 682+558
= 1240
Which of the following is true?
A. 3 gram > 3000 kilograms
B. 3000 grams = 3 kilograms
C. 300 grams > 30 kilograms
D .30 grams < 0.003 kilograms
Answer: B
Because 3 kilograms = 3,000 and 3,000 kilograms = 3,000 grams
if the domain of the function f(x)=2x^2-8 is {-2,3,5}, then the range is
Answer is in the file below
tinyurl.com/wpazsebu
What is the area of a rectangle? Pls help and I will mark brainliest!
Answer:
A. 168 units²Step-by-step explanation:
Find the missing side of the rectangle, use Pythagorean:
b² = 25² - 7² = 576b = √576 = 24 unitsFind area of rectangle:
A = abA = 7*24 = 168 units²Correct choice is A
6. What is the approximate volume of
the cone? Use for a
T.
3cm
14 cm
Figure out $27 x 4 = n.
Answer:
$108
Step-by-step explanation:
20x4 = 80
7x 4 = 28
80+28 = 108
Mr. Ramirez baked 24 cookies. 5 sixths of the cookies were oatmeal. How many oatmeal cookies did Mr. Ramirez bake?
Answer:
20 oatmeal cookies
Step-by-step explanation:
5/6 is the same as 20/24, thus 20.
If "a" is a positive integer, what is the mean of the data below?
{2a, 3a, 3a, 8a}
Answer:
mean = sum of all element / number of elements
mean = (2a + 3a +3a +8a) / 4
mean = 16a/4
mean =4a
Step-by-step explanation:
This is what I need to find
Area:
Primeter:
Which inequality represents the situation? The maximum weight, w, an elevator can lift is 2,200 pounds. w ≥ 2,200 w > 2,200 w ≤ 2,200 w < 2,200
Answer:
w ≤ 2200
Step-by-step explanation:
If a lift can lift a maximum weight of 2200pounds, this means that the lift can not life a weight greater than 2200pounds. For the expression needed, the inequality sign to use will be a less than or equal to sign( ≤ ).
Hence the requires inequality expression will be w ≤ 2200
Joshua drinks 8 cups of water a day. The recommended daily amount is giving in fluid ounces. How many food ounces of water does he drink each day?
Answer:
64 fluid acids=8 cups
Step-by-step explanation:
Solve the system of equations without graphing. Show your reasoning.
Literally help.
Answer:
- x+2y= - 4
2y= - x - 4
Y=x-4/2
Y=x-2
Now, 2nd equation
4x+3y=5
4x+3.x-2=5
4x+3x-2=5
7x-2=5
7x=5+2
x=5+2/7
x=7/7
x=1
Now, continue with 1st equation
y=x-2
y=1-2
y=1
Therefore x=1
And
y=1
But I really need help to pass
Answer:
the cane
Step-by-step explanation:
What is the measure of Adc ??!??
Answer:
Step-by-step explanation:
Although the VNA ADC is measuring voltage (-10V to +10V range in 14 bits), by using a trace formula, this voltage can represent other types of measurement parameters (such as current, temperature, or a scaled voltage).
convert 144km/h into metres per second.? pls make it quick loves :3
40
---
hope it helps
sorry if it doesn't
0 to 50m/s in 10s. What's the acceleration?
Answer:
v = 50m/s
u = 0
a = v-u/t = 50/10= 5m/s²
What is an equation of a circle whose center is (1,4) and diameter is 10?
Question options:
x2 − 2x + y2 − 8y = 83
x2 − 2x + y2 − 8y = 8
x2 + 2x + y2 + 8y = 8
x2 + 2x + y2 + 8y = 83
Answer:
[tex]x^{2} - 2x + y^{2} - 8y = 8[/tex]
Step-by-step explanation:
Standard form for a circle is:
[tex](x - h)^{2} + (y - k)^{2} = r^{2}[/tex] (h, k) is the center r is the radius
[tex](x - 1)^{2} + (y - 4)^{2} = 5^{2} \\x^{2} - 2x + 1 +y^{2} - 8y + 16 = 25\\x^{2} - 2x + y^{2} - 8y = 8[/tex][tex]x^{2} - 2x + y^{2} - 8y = 8[/tex]
I went to the grocery store and my subtotal was $78.00. There is a 4.5% sales tax.How much is my total grocery bill including tax
Answer:
81.51
Step-by-step explanation:
So first you will want to take the percentage of the $78.00.
What we do is multiply 78.00 by 0.045
which is 4.5%
You then get $3.51
Add that to the $78.00:
78.00 + 3.51
= $81.51
Can someone help me please
Answer:
x =4
Step-by-step explanation:
Vertically Opposite Angles,
[tex]12x - 8 = 40 \\ 12x = 40 + 8 \\ 12x = 48 \\ x = 48 \div 12 \\ = 4[/tex]
Lauren woke up one morning and saw frost on the windows. It was -13°C outside. Later in the day, the frost melted. At 3 p.m. it was 4°C outside. Which expression represents the difference between the two temperatures?
Answer:
morning = -13°C
afternoon = 4°C
so,
x = (morning - afternoon)
I hope this helps a little bit.
An art teacher makes a batch of paint by mixing cup paint with cup paint. If she mixes batches, how many cups of paint will she have? The teacher will make nothing cups of paint.
Answer: 19 ¹/₂ cups of purple paint
Step-by-step explanation:
First find out the quantity of purple pain that she has:
= 3/4 + 3/4
= 6/4 cups of paint.
If she mixes 13 batches, the cups of purple paint she will have will be the original number multiplied by 13
= 6/4 * 13
= 78/4
= 19 ¹/₂ cups of purple paint
What is the total surface area??Please help me I’m so confused i have a test tomorrow
Answer:
216 :)
Step-by-step explanation:
There are five sides in total. To find the total surface area we have to find the area of each side.
Let's start off easy with the rectangle at the base. The width and length are 7 and 6, which gives us an area of 42.
The rectangle with dimensions of 8 as the length and 7 as the width gives us an area of 56.
The rectangle with a length of 10 and a width of 7 gives us 70 as an area.
The two triangles are congruent, so all we have to do is find the area of one and multiply it by two. The formula for an area of a triangle is 1/2(bxh)-or the two legs multiplied by each other and then divided by 2. The length of one of the legs is 8, and the other is 6. That gives us 48, which we will then divide by 2 to give us a total area of 24. Now we have to multiply that by two because there are two triangle sides on this figure and they are congruent. That gives us a product of 48.
Now we add up all the areas of each side:
42 + 56 + 70 + 48 = 216
why does the acute triangle go under polygon
HELP ME PLEASE..... i really need it asap
Answer: Buying the 5 tickets to the next hockey game is better because the unit price is only 16$
Step-by-step explanation:
80 / 5 = 16
50 / 3 = 16.666
In ΔUVW, the measure of ∠W=90°, the measure of ∠U=27°, and WU = 9.7 feet. Find the length of VW to the nearest tenth of a foot.
Answer:
32.2
Step-by-step explanation:
esta es la respuesta correcta
What is the area of the triangle
Answer:
30 inches squared
Step-by-step explanation:
The formula for a RIGHT triangle is:
[tex]A= \frac{ab}{2}[/tex]
We are given..
a = 5 inchesb = 1 foot = 12 inchesTherefore...
[tex]A = \frac{5(12)}{2}[/tex]
[tex]A=\frac{60}{2}[/tex]
[tex]A = 30[/tex]
Help me plz, thank u! :))))
Answer: twice 31 and 13 = 75
Step-by-step explanation: 31 + 31 = 62 + 13 = 75
7 plus a number z is more than 5
Answer:
z > -2
Step-by-step explanation:
7 + z > 5
subtract 7 from each side of the equation:
z > -2
The inequality for the given phrase is z+7>5.
What are inequalities?Inequalities are the mathematical expressions in which both sides are not equal. In inequality, unlike in equations, we compare two values. The equal sign in between is replaced by less than (or less than or equal to), greater than (or greater than or equal to), or not equal to sign.
The given phrase is "7 plus a number z is more than 5".
Here, 7 plus a number z is
7+z
The obtained sum is more than 5.
That, is z+7>5
Subtract 7 on both the sides of an inequality, we get
z+7-7>5-7
z>-2
Therefore, the inequality is z+7>5.
To learn more about the inequalities visit:
https://brainly.com/question/20383699.
#SPJ2
What is the value of x?
Answer:
63 degrees
Step-by-step explanation:
PLS ANSWER QUICK MY ASSIGNMENT IS DUE TOMORROW WILL MARK BRAINLIEST!! 15pts
Which of the lists of letters all have line symmetry?
a. A,B,C,D
b. W,X,Y,Z
c. L,M,N,O
d. S,T,U,V
Answer:
B
Step-by-step explanation:
when you slice them in half you get the same thing, example W, when slice you get two V V
Answer:
I go with choice a
Step-by-step explanation:
a) A,B,C,D they all have a line of symmetry