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3 years ago

Can someone talk me through the steps?

Mathematics

1 answer:

dimulka [17.4K]3 years ago

3 0

Y = 6.9x + 5.1.....multiply by 10 to get rid of decimals
10y = 69x + 51 ...subtract 69x from both sides
-69x + 10y = 51

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the distance from a driveway to the closest house is 12,672 feet. How far is that in miles. (1 mile=5280 feet)

Effectus [21]

Answer:

2.4

Step-by-step explanation:

12672/5280

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3 years ago

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A mountain bike costs $675. If the sales tax is 8%, find the total cost of the bike. Round to the nearest cent, if

lisov135 [29]

Answer:

$729.00

Step-by-step explanation:

The tax is ...

0.08 × $675 = $54.00

So, the total cost of the bike is ...

$675 +54 = $729.00

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3 years ago

PLZ HELP ASAP TANGENTS OF CIRCLES

bezimeni [28]

First, we are given that the inscribed angle of arc CB which is angle D is equal to 65°. This is half of the measure of the arc which is equal to the measure of the central angle, ∠O.

m∠O = 2 (65°) = 130°

Also, the measure of the angles where the tangent lines and the radii meet are equal to 90°. The sum of the measures of the angle of a quadrilateral ACOB is equal to 360°.

m∠O + m∠C + m∠B + m∠A = 360°

Substituting the known values,
130° + 90° + 90° + m∠A = 360°

The value of m∠A is equal to 50°.

<em>Answer: 50°</em>

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3 years ago

A recipe calls for 3/4 cup of butter. Angie wants to triple the recipe, but she has only 1 5/8.

Lyrx [107]

Let's start out by tripling the original recipe to see how much butter Angie needs.

$\frac{3}{4} * 3 = total$
$\frac{3* 3}{4} = total$
$\frac{9}{4} = total$
$2 \frac{1}{4} = total$

So we need $2 \frac{1}{4}$ cups of butter, but Angie only has $1 \frac{5}{8}$ . Let's subtract what Angie has from the total to see how much more she needs.

$2 \frac{1}{4} - 1\frac{5}{8} = n$
$\frac{9}{4} - \frac{13}{8} = n$
we will need the least common denominator for both fractions
$\frac{2}{2} *(\frac{9}{4}) - \frac{13}{8} = n$
$\frac{18}{8} - \frac{13}{8} = n$
$\frac{5}{8} = n$

So Angie need $\frac{5}{8}$ cups more of butter for the recipe.

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3 years ago

State the degree for the polynomial:

Ivahew [28]

Answer:

Step-by-step explanation:

the degree of the polynomial is the highest degree of any of the terms.

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2 years ago

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