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4 years ago

The last one Please answer asap im still crying

Mathematics

1 answer:

Anna007 [38]4 years ago

5 0

Answer:

He has 12 ten dollar bills

Step-by-step explanation:

Let t = number of 10 dollar bills

f = number of fifty dollar bills

t+f = 25 since he has 25 bills

solving for f

f = 25 -t

Then we know he has 770 dollars

10t+50f = 770

Using f = 25-t in the above equation

10t + 50 ( 25-t) = 770

Distribute

10t+ 1250 - 50t = 770

Combine like terms

-40t+1250 = 770

subtract 1250 from each side

-40t - 1250-1250 = 770-1250

-40t = -480

divide each side by -40

-40t/-40 = -480/-40

t =12

He has 12 ten dollar bills

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Tom is trying to write 3/47 as a decimal. He used long division and divided until he got the quotient 0.0638297872, at which poi

viva [34]

I disagree because a rational number doesn't terminate or repeat. That would be an irrational number.

please vote my answer brainliest. thanks!

4 0

3 years ago

A TV screen is 41 cm long and 31 cm high. The length of the diagonal is closest to: A) 49 cm Eliminate B) 51 cm C) 54 cm D) 48 c

GuDViN [60]

Answer:

The length of the diagonal is closest to 51 cm.

Step-by-step explanation:

Given:

TV screen is 41 cm long and 31 cm high.

Now, to find the length of the diagonal.

By using pythagorean theorem:

leg 1 = 41 cm, leg 2 = 31 cm.

Let the hypotenuse be $x$ .

(leg 1)² + (leg 2)² = hypotenuse²

$41^{2} +31^{2}=x^{2}$

⇒ $1681+961=x^{2}$

⇒ $2642=x^{2}$

Using square root on both sides we get:

⇒ $51.40=x$

So, the length of the diagonal = 51.40 cm.

By rounding off of 51.40cm it becomes 51 cm.

Therefore, the length of the diagonal is closest to 51 cm.

7 0

3 years ago

Well is their an answer? I thought it was 35% but that’s not an option

kati45 [8]

Answer:

70%

Step-by-step explanation:

60% chance of math homework, thus 40% of no homework

70% chance of english homework, thus 30% of no homework

Chance that there is no homework in math OR english

= 40% + 30% = 70%

8 0

3 years ago

Whole proofs page for 50 points (serious answers only or report and 1 star)

lord [1]

The reasons that can be used to complete the two column table used to prove the required expressions are;

1. ∆ABD Cong. ∆CBE Side-Angle-Side, SAS, rule of congruency

2. ∆ABC cong. ∆EDC Angle-Side-Angle, ASA, rule of congruency

<h3>Which postulates can be used to complete the tables?</h3>

1. Statements Reasons

1) <A = <C Given

2) AB = BC. Congruent sides of isosceles triangle

3) AE Cong. DC. Given

4) AE = DC. Definition of congruency

5) ED Cong. ED. Reflexive property of equality

6) AE + ED = DC + ED Addition property of equality

7) AE + ED = AD, DC + ED = CD Addition property of equality

8) AD = ED, Substitution property of equality

9) AD Cong. ED Definition of congruency

10) ∆ABD Cong. ∆CBE Side-Angle-Side, SAS, rule of congruency

2. Statements Reasons

1) AB || DE Given

Midpoint of BD = C Given

2) <ABC Cong. <EDC Alternate angles formed by parallel lines

3) BC Cong. CD Definition of midpoint

4) <ACB Cong. <DCE Vertical angle theory

5) ∆ABC cong. ∆EDC Angle-Side-Angle, ASA, rule of congruency

Learn more about the rules of congruency here:

brainly.com/question/4186813

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3 0

2 years ago

on average the merchandise shop sells 80cds for every 1 vinyl revord. estimate how many vinyl records they are likely to sell if

Serhud [2]

80/1 = 760/x....80 cd's to 1 vinyl = 760 cd's to x vinyls
cross multiply
(80)(x) = (760)(1)
80x = 760
x = 760/80
x = 9.5.......likely to sell 9 vinyl's

4 0

4 years ago