4 markers cost \$7.04, Which equation would help determine the cost of 7 markers?
Choose 1

(Choice A)
A
\dfrac{4}{7} = \dfrac{\$7.04}{x}
7
4

=
x
$7.04

start fraction, 4, divided by, 7, end fraction, equals, start fraction, dollar sign, 7, point, 04, divided by, x, end fraction

(Choice B)
B
\dfrac{x}{7} = \dfrac{4}{\$7.04}
7
x

=
$7.04
4

start fraction, x, divided by, 7, end fraction, equals, start fraction, 4, divided by, dollar sign, 7, point, 04, end fraction

(Choice C)
C
\dfrac{7}{x} = \dfrac{\$7.04}{4}
x
7

=
4
$7.04

start fraction, 7, divided by, x, end fraction, equals, start fraction, dollar sign, 7, point, 04, divided by, 4, end fraction

(Choice D)
D
\dfrac{4}{7} = \dfrac{x}{\$7.04}
7
4

=
$7.04
x

start fraction, 4, divided by, 7, end fraction, equals, start fraction, x, divided by, dollar sign, 7, point, 04, end fraction

(Choice E)
E
None of the above

c.   x=2.4cm

step-by-step explanation:

similar triangles are triangles which have the same shape but not the same size. this means their angle measures are equal but their side lengths are not instead they are proportional. to solve, we will set up a proportion and solve.

a proportion is two equal ratios set equal to each other. we form the ratios by finding corresponding sides (sides which match to each other on both triangles by their position). out ratios will be one side of the small triangle over the corresponding side on the big triangle as shown below:

.

to solve the proportion, we'll cross multiply by multiplying numerator with denominator across the equal sign.

hello,

b) 62.47% of the students are between 14 and 18 years old.

step-by-step explanation:

mean = 15 and standard deviation = 2

student between 14 to 18

formula used z-score

for age 14 , z score

using z-table , p(z> -0.5)=0.3085

for age 18 , z score

using z-table , p(z< 1.5)=0.9332

p(-0.5< z< 1.5)=0.9332-0.3085 = 0.6247

thus, 62.47% of the students are between 14 and 18 years old.

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step-by-step explanation:

hi im bob : l

step-by-step explanation:

see explanation

step-by-step explanation:

a

(6r + 7) + (13 + 7r) ( remove brackets and collect like terms )

= 6r + 7 + 13 + 7r

= 13r + 20

b

remove brackets and collect like terms

13 - r - 1 + r

= 12 - r

c

remove brackets and collect like terms

= - 8 - r + 2r - 4

= - 12 + r

d

remove brackets and collect like terms

= 7r - - - 6r

[-   - = - - = - ]

= r -