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madam [21]
4 years ago
8

Rosa made a mosaic wall using 42 black tiles, 35 blue tiles, and 23 red tiles. Write a percent to represent the number of red ti

les in the mural.
Mathematics
2 answers:
sergejj [24]4 years ago
8 0
First you have to figure out the total. 
42+35+23= 100
So plug it in.
23/100
23%
Your answer is 23%.
Hope this helped ^-^
Vlada [557]4 years ago
4 0

Answer:

<h2>23%</h2>

Step-by-step explanation:

Givens:

  • 42 black tiles.
  • 35 blue tiles.
  • 23 red tiles.

The percentage of the number of red tiles is obtained by dividing all red tiles with the total number of tiles, that is

\frac{23}{42+35+23}=\frac{23}{100}= 0.23 \ (or \ 23\%)

<em />

<em>Therefore, all red tiles in the mural represent a 23% of all tiles.</em>

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Help plz if u can i would really like it
kotegsom [21]

Answer:

you would subtract thoose numbers

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
Help please thank you
anzhelika [568]

Answer:

g(1) = -6

Step-by-step explanation:

g(x) = -2x^2 - 4x

You want to solve for g(1). To do this make every x value in the original equation become 1.

g(1) = -2(1)^2 - 4(1)

Evaluate the exponent.

g(1) = -2(1) - 4(1)

Multiply.

g(1) = -2 - 4

Subtract.

g(1) = -6

4 0
4 years ago
You purchased 8 gal of paint and 3 brushes for 152.5. the next day, you purchased 6 gal of paint and 2 brushes for 113. how much
kotegsom [21]
Let the price of paint be x and the price of brush be y

8x + 3y = 152.5 ------------ (1)
6x + 2y = 113 --------------- (2)

(1) x 2 :
16x + 6y =305 -------------(1a)

(2) x (3) :
18x + 6y = 339 -------------(2a)

(2a) - (1a) :
2x = 34
x = 17 ---------- sub into (2)
6(17) + 2y = 113
102 + 2y = 113
2y = 113 - 102
2y = 11
y = 5.5


x = $17, y = $5.50

Each gallon of paint costs $17 and each brush costs $5.50




3 0
3 years ago
Find the solution to dy/dt = 7 y<br><br> satisfying<br> y(9) = 5
AVprozaik [17]
\rm \dfrac{dy}{dt}=7y,\qquad\qquad\qquad y(9)=5

I'm not sure what methods you've learned up to this point but one option is to apply separation of variables:

\rm \dfrac{dy}{y}=7dt

and then integrate from there,

\rm ln|y|=7t+c

exponentiate to isolate y,

\rm |y|=e^{7t+c}

Apply exponent rule,

\rm |y|=e^c e^{7t}

rename this e^c as some new constant, perhaps A,

\rm \pm y=A e^{7t}\qquad\qquad A>0

This A can only be positive, non-zero, but absorbing the plus/minus fixes that restriction,

\rm y=A e^{7t}\qquad\qquad A\ne0

Use your initial information to solve for this unknown value A,

\rm y(9)=A e^{7\cdot9}=5

solving for A, dividing by the exponential,

\rm A=5e^{-63}

So we get a final result of

\rm y(t)=5e^{-63}e^{7t}

apply exponent rule again to get a better looking answer, and factor,

\rm y(t)=5e^{7(t-9)}

Lemme know if too confusing.
3 0
3 years ago
Valencia climb 25 feet up a rock wall and then climbs 12 feet down to a landing area. The number of feet Valencia climbs can be
Sever21 [200]

Answer:

37

Step-by-step explanation:

| - 12|  = 12

the absolute value is always positive. imagine it as "how much away from zero"

3 0
3 years ago
Read 2 more answers
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