Answer:18
Step-by-step explanation:
Given
The school has 200 boys and 300 girls
The ratio of boys and girls is 2:3
If 45 seventh grade students are selected then the ratio of boys and girls remain the same
suppose there are 2x boys and 3x girls, such that ratio is 2:3
[tex]\Rightarrow 2x+3x=45\\\Rightarrow 5x=45\\\Rightarrow x=9[/tex]
No of the boys are [tex]2x=2\times 9=18[/tex]
Answer:
18
Step-by-step explanation:
what the another person said
Help. Anyone. ......
Can someone answer this i don't understand it
What is the slope of the line that passes through the points (-10, -8) and
(-8, -16)? Write your answer in simplest form.
A bag contains 20 pink candies, 8 red candies, and 12
green candies. Without looking, Sarah pulls out a piece of
candy. Which color of candy is least likely to be pulled
out?
Answer:
The red marbles.
Step-by-step explanation:
It is because Red has the least amount of marbles, therefore it is most likely for you to not pull out a red marble.
its math again so sorry
Answer:
589
Step-by-step explanation:
Answer:
the answer i think is 103 centimeters
Step-by-step explanation:
6.) River C is 200 miles longer than River D. If the sum of their lengths is 5,550 miles,
what is the length of each river?
Answer:
River C: 2875, River D: 2675
Step-by-step explanation:
Subtract 200 from 5550. Then divide your difference (5350) by 2 to get 2675. Add 200 to one of your 2675s to get river C's length.
plssss do this!!!!! thanks
Answer:
4) SU = TU definition of a midpoint
5) ΔSVU ≅ ΔTWU Side-Side-Side
6) ∠SVU ≅ ∠TWU corresponding parts of congruent triangles are congruent
Step-by-step explanation:
Please help ASAP!
Two
angles, ZJ and ZK are supplementary. The measure of ZJ is (2x+5)°. The
measure of ZK is (3x-10)°. What is the measure of ZK?
Answer:
ZK = 95 degrees
Step-by-step explanation:
Supplementary angles are when the sum of 2 angles equals 180 degrees. Since ZJ and ZK are supplementary, we can add both of them to equal 180 degrees.
ZJ + ZK = 180
Our first objective: find the value of x
(2x + 5) + (3x - 10) = 180
2x + 5 + 3x - 10 = 180
Combine like terms
5x - 5 = 180
Add 5 to both sides to isolate variable x
5x = 175
Divide both sides by 5 to isolate variable x
x = 35
Plug in x value for ZK expression
3(35) - 10
Use PEMDAS
105 - 10
95
What is the product of (x − 3) and (x + 7)? A. x^2 + 4x − 21 B. x^2 − 4x − 21 C. x^2 − 10x − 21 D. x^2 + 10x − 21
Answer: (x−3)(x+7)
Step-by-step explanation:
=(x+−3)(x+7)
=(x)(x)+(x)(7)+(−3)(x)+(−3)(7)
=x^2+7x−3x−21
=x^2+4x−21
Answer:
A. X^2+4x-21
Step-by-step explanation:
(x−3)(x+7)
=(x+−3)(x+7)
=(x)(x)+(x)(7)+(−3)(x)+(−3)(7)
=x2+7x−3x−21
=x2+4x−21
I hope this helps :) I got it CORRECT also i added the Steps if your teacher asked for steps :)
URGENT:
M is the Centriod of DEF
Answer:
A
Step-by-step explanation:
2/3 the way so you would do 6 plus 3, because 3 is half of 6
The measures of two angles are 4x° and (2x + 12)°. What is the measure of the each angle if x = 13
Answer:
4x° if x=13
4(13)= 52°
2x+12 if x=13
2(13)+13= 38°
Plz answer I'll give brainliest
Answer:
900<x<1100
Step-by-step explanation:
The third side must be greater than the difference of the other two sides
10000- 1000 < 10x
9000< 10x
Divide by 10
9000/10 < x
900 < x
The third side must be smaller than the sum of the other two sides
10000+1000 > 10x
11000>10x
Divide by 10
11000/10>10x/10
1100>x
900<x<1100
HELP giving brainlest and extra points
divide tomato genome and human genome and you'll get
= 0.3
standard form is
3 × 10-¹
Complete the table of values for y = x2 – 2x.
(2 marks)
x – 2
-1 0 1
2
34
y
3 0
3
Submit Answer
Skip for Now
please fast
Answer:
8
-1
0
8
Step-by-step explanation:
HELP ASAP will give brainlist
Increase £3.20 in the ratio 2:3
Please show your working out (/formulae).
Answer:
£4.80
Step-by-step explanation:
Total amount = £3.20
Ratio = 2 : 3
Old : New = 2 : 3
3.20 : x = 2:3
[tex]\frac{3.20}{x}=\frac{2}{3}\\\\3.20*3=2*x\\\\\frac{3.20*3}{2}=x\\\\x = 1.60 *3\\[/tex]
x = £ 4.80
PLEASE HELP!! ASAP
The question is on the picture
Identify the area of the composite shape.
71 cm squared
98 cm squared
34 cm squared
56 cm squared
Answer:
Option (1)
Step-by-step explanation:
Area of the composite figure ABCDEFGH = Area of rectangle ABGH - Area of rectangle CDEF
Area of rectangle ABGH = Length × Width
= 14 × 7
= 98 cm²
Area of rectangle CDEF = 9 × (7 - 4)
= 27 cm²
Area of the composite figure = 98 - 27
= 71 cm²
Option (1) is the correct option.
please help me solve this. ill award brainliest! please just explain how to solve and what it should be.
Answer:
3 - that is if all of those say 7 because some have a line through and some dont.
Step-by-step explanation:
Download photomath. You take a photo of the math problem and it gives the answer plus steps to solve.
A rectangular prism has a length of 6in, a height of 10in, and a width of 11in. What is its volume, in cubic in?
Answer:
660 cubic inches
Step-by-step explanation:
Volume = length x width x height
Volume = 6 x 11 x 10
Volume = 660 cubic in
18 entre 12 (división) Porfa respondan, mi ama me pega con la chancla si no lo hago,, es lo único que me faltam
Answer:
Step-by-step explanation:
18 dividido por 12 es 1.5 , esto se puede probar haciendo division larga o multiplicando 1.5 por 12
1.5 * 12 = 18
Espero que te haya ayudado la respuesta y que ahores el chancletazo.
pls help i give 25 points
Answer:
find the dirivitev
Step-by-step explanation:
Answer:
2b + 2c
35h + 15m
ef + eg
Step-by-step explanation:
you just individually multiply everything inside the parentheses by the number on the outside.
Two lines that intersect and are not parallel
Answer:
Perpendicular
Step-by-step explanation:
"Two distinct lines intersecting each other at 90° or a right angle are called perpendicular lines."
Factor fully. Pls help
Answer:
(2x+9)^2
Step-by-step explanation:
Factor the equation by using the perfect square rule: a^2+2ab+b^2=(a+b)^2 or a^2-2ab+b^2=(a-b)^2 depending on the trinomial
Which expression is equivalent to -6(3x-2/3)
-2x+9
-3x-6 2/3
-18x+12
-18x+4
Answer:
-18x+4
Step-by-step explanation:
you simply distribut the negative 6:
so -6 times 3x would be -18x
and -6 times -2/3 would be positive 12/3 or 4
Find the perimeter of the given figure, help please!
Answer:
22.5 cm
Step-by-step explanation:
P=2(6.75)+2(4.5)
P=13.5+9
Find the percentage change from
40 to 60.
Answer:
50%
thats the answer
75 kilometers in 5 minutes is how many per minute
Answer:
15
Step-by-step explanation:
75/5=15
Select all expressions that are
equivalent to
64 2/3
Answer: Here is every possibility
194/3 = 388/6 = 582/9
= 776/12 = 970/15 = 1164/18
= 1358/21 = 1552/24 = 1746/27
= 1940/30 = 2134/33 = 2328/36
= 2522/39 = 2716/42 = 2910/45
= 3104/48 = 3298/51 = 3492/54
= 3686/57 = 3880/60 = 4074/63
= 4268/66 = 4462/69 = 4656/72
= 4850/75 = 5044/78 = 5238/81
= 5432/84 = 5626/87 = 5820/90
= 6014/93 = 6208/96 = 6402/99
= 6596/102 = 6790/105 = 6984/108
= 7178/111 = 7372/114 = 7566/117
= 7760/120 = 7954/123 = 8148/126
= 8342/129 = 8536/132 = 8730/135
= 8924/138 = 9118/141 = 9312/144
= 9506/147 = 9700/150 = 9894/153
= 10088/156 = 10282/159 = 10476/162
= 10670/165 = 10864/168 = 11058/171
= 11252/174 = 11446/177 = 11640/180
= 11834/183 = 12028/186 = 12222/189
= 12416/192 = 12610/195 = 12804/198
= 12998/201 = 13192/204 = 13386/207
= 13580/210 = 13774/213 = 13968/216
= 14162/219 = 14356/222 = 14550/225
= 14744/228 = 14938/231 = 15132/234
= 15326/237 = 15520/240 = 15714/243
= 15908/246 = 16102/249 = 16296/252
= 16490/255 = 16684/258 = 16878/261
= 17072/264 = 17266/267 = 17460/270
= 17654/273 = 17848/276 = 18042/279
= 18236/282 = 18430/285 = 18624/288
= 18818/291 = 19012/294 = 19206/297
Step-by-step explanation:
Express the function.
f(x) = 2x² - 4x - 13
in the form f(x) = a(x + h)² + k
Answer:
2(x-1)^2-15
Step-by-step explanation:
2x^2-4x=2(x-1)^2-2
insert that in:
f(x)=2(x-1)^2-2-13=2(x-1)^2-15
a=2,h=-1,k=-15