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max2010maxim [7]
3 years ago
13

Please help me sole this equation !!

Mathematics
2 answers:
tester [92]3 years ago
6 0
(9x-15)/4=x /*4...... 9x-15=4x........ 5x=15........ x=3
Mnenie [13.5K]3 years ago
5 0
\frac{9x - 15}{4} = x             / * 4 (both sides)
9x - 15 = 4x                          / - 9x (both sides)
-15 = -5x                              / ÷ (-5) (both sides)
x = 3
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your school is sponsoring a pancake dinner to raise money for a field trip. You estimate that 200 adults and 250 children will a
kumpel [21]
Equation is: 200x + 250y = 3800
Put x = 0
then 250y = 3800
y = 3800 / 250
y = 15.2

Now, Put y = 0
200x = 3800
x = 3800/200
x = 19

So, the coordinates are: (19, 0) & (0, 15.2)
We will mark those coordinates & draw the line from origin. Graph is done

Hope this helps!
5 0
3 years ago
A gym has an inclined treadmill for joggers, as shown in the figure.
trapecia [35]
We know that
in a right triangle
cos θ=adjacent side angle <span>θ/hypotenuse
in this problem

</span>adjacent side angle θ=38 in
hypotenuse=40 in

cos θ=38/40
θ=arc cos (38/40)-------> 18.19°-------> 18°

the answer is
18 degrees
3 0
3 years ago
The function f(x) varies directly with x and f(x)=160 when x=40.
DaniilM [7]
160÷40 is 4 so i think the function f multiplies x by 4.
when x is 8, 8×4=32 so the answer shld be 32
4 0
2 years ago
Any suggestions or answers
ryzh [129]

I believe the answer is B.) 9and27/32

Best of luck.

6 0
3 years ago
Read 2 more answers
Grandma has 1/2 of her birthday cake left . she wants her 12 grandchildren to each get the same size piece of cake to take home
eimsori [14]

Answer: 1/24


Step-by-step explanation:

you need to use kcf ( keep the first fraction change division into multiplication and flip the other fraction)

turn 12 into 12/1 and then just divide.

1/2 x 1/12

= 1/24



6 0
3 years ago
Read 2 more answers
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