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3 years ago

What number divided by 4 equals 6? Type the correct answer, then press Enter.

Mathematics

1 answer:

Sunny_sXe [5.5K]3 years ago

6 0

Answer:

Step-by-step explanation:

Let x be the number.

$x/4=6$

Multiply both sides by 4 to isolate x

$(x/4)4=6*4\\x=24$

I hope this helps!

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Bo calculated the area of a square to be

ycow [4]

Answer:

5/2 inches

Step-by-step explanation:

If there is 25/4 squared inches, we could set this as an equation:

$x {}^{2} = (25 \div 4)$

Now, since 25 and 4 is a perfect square, we could do this:

$x {}^{2} = (5 \div 2) {}^{2}$

(distribute the square exponent to both 5 and 2 to get the original)

And since the exponent is the same, we can clearly tell x is 5/2 (or square root it)

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2 years ago

Evaluate the expression for the given values of the variable.

VARVARA [1.3K]

Answer:

Step-by-step explanation:

we know that y=sqrt(7), so just plug it into the expression y^2 +3. now we have (sqrt(7))^2 +3, (sqrt(x))^2=x, so (sqrt(7))^2 +3= 7+3=10

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3 years ago

Evaluate this expression.<br> 8x, if x = 6

grandymaker [24]

Answer:

Step-by-step explanation:

8 times 6 = 48

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3 years ago

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Choose the required figure.<br> A right triangle circumscribed about a circle:

Aloiza [94]

Answer with explanation:

If you want to Draw a Right Triangle Circumscribed about a circle, Draw a Right Triangle by taking Pythagorean Triplet.

Now, Draw Perpendicular Bisector of any of two sides.The Point where the two bisectors meet is center of the circle.

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3 years ago

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Fiona made a score of 76 on her midterm exam for her to get a b in the course the average of her midterm exam and final exam mus

qaws [65]

Answer:

84 <= x <= 102

Step-by-step explanation:

Fiona scored 76 on her 1st midterm. Lets call x the score she will get on her 2nd exam.

We know she needs between 80 and 89 inclusive so get a b. So the question is, how much does she need to get on the 2nd test? Or, what values x can take for her to get a b?

The average she gets between both test is the arithmetic mean, this is, the sum of both tests divided by 2:

(76+x)/2

So, she need this value to be between 80 and 89. Lets use inequalities:

80 <= (76+x)/2 <= 89

We can solve it in a similar way we do for equalities. Lets start by multiplying terms in every side by 2, to eliminate the 2 dividing the central term:

2*80 <= 76+x <= 89*2

160 <= 76+x <= 178

Now, lets subtract 76 in every side so we get x alone in the center:

160 - 76 <= x <= 178 - 76

84 <= x <= 102

This is, for getting a b she need her second score to be equal or greater than 84 and less or equal to 102.

Lets verify for some values. For example, if she gets 88:

(76+84)/2 = 160/2 =80---> verifies!

And any value greater than 84 will give her a better score. Lets see what happens with 102"

(76+102)/2 = 178/2 = 89 ---> verifies

Any score greater than 102 will giver here a total sore greater than 89 so it won't be a b.

So, if she scores 102 she will get 89 (the statement does not say the range of scores, it is not usually common that the pass 100, but as the statement does not restrict it we consider here. We the maximum score is 100 we will use 84 <= x <= 100).

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4 years ago