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Gelneren [198K]

3 years ago

10

Ralph sold brownies for $0.28 a piece in order to buy baseball cards. If the card cost $0.60 per pack, and if Ralph had no money

left over after buying them, what is the least number of brownies he must have sold?

1 answer:

Svetradugi [14.3K]3 years ago

3 0

Is there a formula for this? Or maybe do you know what equation it's used for?

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Find the length of the hypotenuse.

Ivanshal [37]

Answer:

$hypotenuse \: = 16$

Step-by-step explanation:

$Sin \alpha = \: \: \: \frac{opposite}{hypotenuse} \\ \\ Sin(30) = \frac{8}{hyp} \\ \\ \frac{1}{2} = \frac{8}{hyp} \\ \\ hypotenuse \: = 16$

$HOPE \: \: \: \: IT'S \: \: \: \: \: HELPFUL$

6 0

4 years ago

3 lines are shown. A line with points A, F, D intersects with a line with points B, F, E at point F. Another line extends from p

lutik1710 [3]

Answer:

The vertical angles are angle AFE and angle BFD ⇒ 1st answer

Step-by-step explanation:

* <em>Lets explain when the vertical angle are formed</em>

- The vertical angle are formed wen two lines cross each other

- The vertical angles are opposite to each other

- The vertical angles are equal in measures

* <em>Look to the attached figure</em>

- There are three lines intersected at point F, line AD , line BE and

line FC

- Line AD intersects line BE at F

- Line FC intersects the two lines at F, where FC is between the sides

of the angle BFD

- <em>Lets find the vertical angles</em>

∵ Line AD intersects line BE at F

∴ <u><em>∠ AFE and ∠ BFD are vertical angles</em></u>

∴ <em>∠ AFB and ∠DFE are vertical angles</em>

∵ Line FC intersects the two lines AD and BE at point F

∵ The end point of line FC is F

∴ There is no vertical angles formed between the two lines and the

line FC

∴ The vertical angles are angle AFE and angle BFD

8 0

3 years ago

Read 2 more answers

Given: AD = BC and AD || BC

o-na [289]

Answer:

See below

Step-by-step explanation:

<u><em>Proof:</em></u>

<u><em>Statements </em></u> | <u><em>Reasons</em></u>

AD ≅ BC | Given

AD ║ BC | Given

AC ≅ AC | Reflexive Property

∠DAC ≅ ∠ACB | If 2 || lines are cut by a trans., the | alternate interior ∠s are congruent.

ΔADC ≅ ΔBCA | S.A.S Postulate

BA ≅ DC | Corresponding sides of congruent Δs

So, quad. ABCD is a ║gm | If a quad. has its opposite sides

| congruent, the quad. is a parallelogram.

5 0

3 years ago

A fishing lodge wants to build a new boat ramp. The slope of the ramp must be 8° to the horizontal. The total height of the bank

Likurg_2 [28]

Answer:

The length of the sloping section of the ramp is 20.12 m

Step-by-step explanation:

Given;

the total height of the bank, h = 2.8 m

The slope of the ramp must be 8° to the horizontal, i.e, θ = 8°

Let the length of the sloping section = L

let the horizontal distance between the height of the bank and sloping section = b

Thus, h, L and b forms three sides of a right angled-triangle, with L as the hypotenuse side, h (height of the triangle) as the opposite side and b (base of the triangle) as the adjacent side.

We determine L by applying the following formula;

Sinθ = opposite / hypotenuse

Sin θ = h / L

L = h / Sin θ

L = 2.8 / Sin 8

L = 2.8 / 0.13917

L = 20.12 m

Therefore, the length of the sloping section of the ramp is 20.12 m

6 0

3 years ago

A certain high school reported that only 74% of its students enroll in a math class during senior year. If

denis-greek [22]

Answer:

<em>550 </em><em>students are in the school.</em>

Step-by-step explanation:

The way I found my answer was by first turning<em> 74% into a decimal</em>, which is <em>0.74</em>. Then I <em>divided 407 </em>by<em> 0.74</em> and I got<em> 550</em>. Therefore, <em>550 is our answer.</em>

5 0

3 years ago