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3 years ago

Can someone please help

Mathematics

1 answer:

Dmitry_Shevchenko [17]3 years ago

8 0

1. Given

2. ∠PQA ≅ ∠RQA

4. ∠QXA ≅ ∠QYA

5. Reflexive Property of Congruence

6. ΔQXA ≅ ΔQYA

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Julio has $2.75 in his pocket in nickels and dimes . The number of dimes is 10 less than twice the number of nickels. Find the n

Margaret [11]

Answer:

A dime is worth 2 nickels.

let no of dimes be x

let no of nickles be y

so as per the data mentioned in the question , x=2*y-10

total amount = $2.75

so total amount should comprise of nickels and dimes

x*dimes + y*nickels = $2.75

x*( 2 nickels)+ y *nickels = $2.75

=> nickles( 2x+y) = $ 2.75

but 20 nickels = 1 dollar

nickles(2x+y) = 2.75*20 nickels

cancelling nickles on both sides

2x+y = 55

already we know that x= 2y-10

so 2(2y-10) +y= 55

4y-20+y=55

5y -20 =55

add 20 on both sides

5y-20+20=55+20

5y=75

divide with 5 on both sides

5y/5 =75/5

y= 15

so x= 2y-10

x= 2*15-10

x= 30-10

x= 20

so # of dimes =20

# of nickels =15

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4 years ago

How do you write 158% as a fraction, mixed number, or whole number in simplest form?

blagie [28]

1 29/50 is the simplest form of 158%

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3 years ago

Read 2 more answers

Shay created the table below to graph the equation r-3-sin theta (rounded to the hundredths place). Analyze the table. Did Shay

monitta

Answer:

B is false

Step-by-step explanation:

Let's check Shay's table:

if $\theta=0,$ then $r=3-\sin 0=3-0=3$ (true);
if $\theta =\dfrac{\pi}{6},$ then $r=3-\sin \dfrac{\pi}{6}=3-\dfrac{1}{2}=2.5$ (true);
if $\theta = \dfrac{\pi}{4},$ then $r=3-\sin \dfrac{\pi}{4}=3-\dfrac{\sqrt{2}}{2}\approx2.29$ (true);
if $\theta=\dfrac{\pi}{3},$ then $r=3-\sin \dfrac{\pi}{3}=3-\dfrac{\sqrt{3}}{2}\approx 2.13$ (false);
if $\theta =\dfrac{\pi}{2},$ then $r=3-\sin \dfrac{\pi}{2}=3-1=2$ (true).

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4 years ago

Set his alarm with a probability of 0.10. If he sets the alarm, it will wake him on time to make his first class with a probabil

Tomtit [17]

Answer:

C) 0.880

B) 0.075

Step-by-step explanation:

If the professor forgets to set the alarm

Probability = 0.1,

Wakes up in time probability = 0.25.

If the professor sets the alarm

Probability = 1 - 0.1 = 0.9

Wake up in time probability = 0.95.

A.)

The probability that professor Moore wakes up in time to make his first class tomorrow

Probability = ( Forgets to set alarm probability x Wakes up in time )+ ( Sets the alarm probability x Wakes up in time ) = ( 0.1 x 0.25 ) + ( 0.9 + 0.95 ) = 0.88

B.)

Late in the class

Set the Alarm Probability = 0.1

Wakes up late probability = 1 - 0.25 = 0.75

Professor Sets the alarm probability = Set the Alarm Probability x Wakes up late probability = 0.1 x 0.75 = 0.075

3 0

4 years ago

I have no idea just please helppp ☺️

podryga [215]

Answer:

x = 0

Step-by-step explanation:

2x - 6 + 9 ; -6 + 9 = 3

2x + 3= 3x + 3 + x

3x plus x = 4x

2x + 3 = 4x + 3

x = 0

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4 years ago