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Gala2k [10]
3 years ago
10

The ratio of boys to girls in mr.chen's class is 4 to5 .which of the following cannot be the total number of students in mr.chen

's class
Mathematics
1 answer:
scZoUnD [109]3 years ago
8 0
13:18 because the numbers don't into 4 or 5.
You might be interested in
Use graphing to find the solution of the system of equations. -x^2+y=1, -x+y=2
vladimir2022 [97]

ANSWER


x=-0.62 or x=1.62




EXPLANATION


For -x^2+y=1



We make y the subject to obtain,



y=x^2+1


We can easily graph this function, because we just have to transform the graph of y=x^2 by shifting the intercept up to 1.



As for the straight line, -x+y=2,


We find the intercepts as follows,



When y=0,x=-2.


When x=0,y=2.


We plot the points (-2,0) and


(0,2).



We now draw the two graphs on the same graph sheet. The intersection of the two graphs gives the solution to be


x=-0.62 or x=1.62


See graph




5 0
3 years ago
Suzanne bought 6 paint sets. Each set contains the same number of brushes. She has 18 brushes. Write and solve an equation to de
PSYCHO15rus [73]

Answer:

3

Step-by-step explanation:

Given that:

The number of paint sets, Suzanne bought= 6

As each set contains the same number of brushes.

Let x be the number of brushes each set contains.

So, the total number of brushes in 6 sets = 6x.

It is given that the total number of brushes she has is 18, which is equals to 6x.

So, the required equation is

6x=18

\Rightarrow x=\frac {18}{6}

\Rightarrow x=3.

Hence, the number of paint brushes each set contains is 3.

4 0
3 years ago
Maddy bought 2 ⅔ pounds of grapes and 1 ⅕ pounds of apples. If she bought bananas that weighed 1 ¼ times as much as the grapes,
spin [16.1K]

Answer:

3 whole number, 1/3

Step-by-step explanation:

To solve this, Multiply the value of the banana to the weight of the Grapes.

Please find the attached file for a comprehensive Solution.

Maths is fun !

4 0
3 years ago
Solve: 4 - |3x + 1| x > 1 3 Eliminate D) x 1 3
Marta_Voda [28]
5:12 add sum to sum then sum
8 0
3 years ago
I’m stuck on these two questions
torisob [31]
7) -5-x=0
x=-5
8) 4x-36=0
4(x-9)=0
x-9=0
x=9
8 0
3 years ago
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