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3 years ago

Convert 7 3/8 to a fraction greater than 1

Mathematics

1 answer:

Sergio039 [100]3 years ago

7 0

59/8 because you would do the denominator multipled by the whole number and add what you got with the numerator

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Pls helpppp asap it would mean alot also its not 12

erica [24]

Answer:

16 comets

Step-by-step explanation:

This is like a simple versions of systems of equations.

You'd want to create 2 equations describing the two pieces of information they give you. First, define the variables:

# of Fantails = f

# of Comets = c

You know Gloria has 22 total, so f + c = 22

You also know there are 10 fewer f than c, so c - 10 = f

In this case, you can substitute "f" in and solve for c.

(c - 10) + c = 22

2c - 10 = 22

2c = 32

c = 16

I hoped this helped!

8 0

4 years ago

Mark made a scale drawing of a soccer field, using a scale of .5 cm=1m. The actual length of the field is 110 m. What is the len

VikaD [51]

Answer:

The length of the field on the drawing is 55 cm that is option D.

Step-by-step explanation:

Given:

Mark made a scale drawing of a soccer field, using a scale of .5 cm=1 m.

The actual length of the field is 110 m.

Now, to find the length of the field on the drawing.

Let the length of the field on drawing be $x\ cm.$

As given,

Drawing of a soccer field, using a scale of 0.5 cm=1 m.

So, 0.5 cm is equivalent to 1 m.

Thus, $x\ cm$ is equivalent to 110 m.

Now, to get the length of the field on the drawing by using cross multiplication:

$\frac{0.5}{1} =\frac{x}{110}$

By cross multiplying we get:

$55=x$

$x=55\ cm$

Therefore, the length of the field on the drawing is 55 cm that is option D.

7 0

3 years ago

Becky is an experienced swimmer. The table contains data on her times in the 100-meter freestyle event for each year over the pa

Sauron [17]

Correlation coefficient (r) = [nΣxy - (Σx)(Σy)] / [sqrt(nΣx^2 - (Σx)^2)sqrt(nΣy^2 - (Σy)^2)]
Σx = 21 => (Σx)^2 = 21^2 = 441
Σy = 671 => (Σy)^2 = 671^2 = 450,241
Σx^2 = 1 + 4 + 9 + 16 + 25 + 36 = 91
Σy^2 = 98^2 + 101^2 + 109^2 + 117^2 + 119^2 + 127^2 = 75,665
Σxy = 1(98) + 2(101) + 3(109) + 4(117) + 5(119) + 6(127) = 2,452
r = [6(2,452) - 21(671)] / [sqrt(6(91) - 441)sqrt(6(75,665) - 450,241)] = 621/sqrt(105)sqrt(3749) = 0.99

option b is the correct answer.

5 0

3 years ago

If using the method of completing the square to solve the quadratic equation x^2 + 3x +21 =0?

goldfiish [28.3K]

Answer:

$x= \dfrac 12 \left( -3 +i5\sqrt 3\right)\\\\x= \dfrac 12 \left( -3 -i5\sqrt 3\right)$

Step-by-step explanation:

$~~~~~~x^2 +3x +21 = 0\\\\\implies x^2 +3x = -21\\\\\implies x^2 + 2\cdot \dfrac 32 \cdot x + \left( \dfrac 32 \right)^2 = -21 + \left( \dfrac 32 \right)^2\\\\\implies \left(x + \dfrac 32 \right)^2 = -21+\dfrac 94\\\\\implies \left(x + \dfrac 32 \right)^2 = -\dfrac{75}4\\\\\implies x+ \dfrac 32 = \pm\sqrt{-\dfrac{75}4 \right)\\\\\implies x + \dfrac 32 = \pm i \dfrac{5\sqrt 3}{2}\\\\\implies x = -\dfrac 32 \pm i \dfrac {5\sqrt 3}2\\\\\implies x = \dfrac 12 \left( -3 \pm i5\sqrt 3\right)$

8 0

2 years ago

no hosting link just a simple answer to my question. please help only if you want a brainliest thank you.

kow [346]

Answer: 5

Step-by-step explanation:

4 0

3 years ago