1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Romashka [77]
3 years ago
14

1.When Ricardo was 9 years old, he was 56 inches tall. Ricardo is now 12 years old and he is 62 inches tall. Find the percent of

increase in Ricardo’s height to the nearest tenth.
2.The manager at a jewelry store is arguing with his sale assistant. The manager believes that having a 50% off sale on a $49.98 necklace is the same as taking 30% off now and a further 20% off that discounted sale price later. What do you think?
Mathematics
1 answer:
Stells [14]3 years ago
5 0
1) 0.20%
2)$49.98×50% = $24.99
$49.98×30% = $14.99
$49.98-$14.99 = $34.99
$34.99×20% = $7.00
$34.99-$7.00 = $27.99
You might be interested in
From the top of a vertical tower, 331 feet above the surface of the earth, the angle of depression to a doghouse is 28 degrees 8
Elena L [17]

Answer:

619.13 feet

Step-by-step explanation:

Please find the attachment.

Let x represent the distance between doghouse to the foot of the tower.

We have been given that from the top of a vertical tower, 331 feet above the surface of the earth, the angle of depression to a doghouse is 28 degrees 8'. We are asked to find the distance between doghouse to the foot of the tower.

First of all, we will convert our given angle into degrees as it is given in degrees and minutes.

We will divide 8 by 60 to convert 8 minutes into degrees as:

\frac{8}{60}=0.13333

The doghouse, tower and angle of depression forms a right triangle with respect to ground, where, 331 feet is opposite side and x is adjacent side to angle 28.13 degrees.

\text{tan}=\frac{\text{Opposite}}{\text{Adjacent}}

\text{tan}(28.13^{\circ})=\frac{331}{x}

x=\frac{331}{\text{tan}(28.13^{\circ})}

x=\frac{331}{0.534623339864}

x=619.12747783

Upon rounding to nearest hundredth, we will get:

x\approx 619.13

Therefore, the doghouse is 619.13 feet far from the foot of the tower.

6 0
3 years ago
2a+b=15.7 what’s the possible values of b
Fiesta28 [93]

Answer:

b = 15.7 -2a

Step-by-step explanation:

You are asking us to solve for b

2a +b = 15.7

Subtract 2a from each side

2a-2a+b = 15.7 -2a

b = 15.7 -2a

4 0
4 years ago
ANSWER ASAP TEST IN ONLY 45 MINUTES
melomori [17]

Answer:

-2x-15

Step-by-step explanation:

7 0
3 years ago
Read 2 more answers
I need help an trash at math
Vlada [557]

Answer:

i believe its 16

Step-by-step explanation:

4 0
4 years ago
Read 2 more answers
A new bank customer with 3,000 wants to open a money market account the bank is offering a simple interest rate of 1.8% how much
Tcecarenko [31]

Answer:

$3540

Step-by-step explanation:

See explanation

Step-by-step explanation:

The Simple Interest will be calculated as:

= P × R × T

= $3000 × 1.8% × 10.

= $3000 × 0.018 × 10

= $540

The interest that the customer earn in 10 years is $540.

Then, the account balance after 10 years will be:

= Principal + Interest

= $3000 + $540

= $3540

Therefore, the account balance will be $3540

5 0
3 years ago
Other questions:
  • A dependent linear system has _____ solutions
    7·1 answer
  • How do you find the asymptote of a function
    6·1 answer
  • HELPP 70 POINTS!!!!!!!!!!!
    11·1 answer
  • Help <br> Help<br> Help<br> Help<br> Help
    10·1 answer
  • How many sides does a nonagon have
    8·2 answers
  • Zack had 20 people show up for his first exercise class he had 36 come to second class what is the percent increased
    13·1 answer
  • Solve for q: 30 + q=43​
    13·1 answer
  • 10x – 3x + 7 the simplified expression
    6·2 answers
  • A candidate for a US Representative seat from Indiana hires a polling firm to gauge her percentage of support among voters in he
    11·1 answer
  • If a quadrilateral is a rectangle, then it has four right angles. true or false?
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!