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
Rasek [7]
1 year ago
14

Juan is making a delivery to a store. The total trip will be 450 miles. He is driving at a constant rate of 60 miles per hour. H

e has already driven 30 miles. How
much longer will it take him to get to the store?

Mathematics
1 answer:
liraira [26]1 year ago
5 0
60x + 30 = 450 when solved, it will take Juan 7 hours to get to the store.
You might be interested in
You invested money in two funds. Last year, the first fund paid a dividend of 8% and the second a dividend of 5%, and you receiv
Angelina_Jolie [31]

You invested 11000 in in 2st fund and 9000 in 2nd fund

<h3><u>Solution:</u></h3>

Given that, You invested money in two funds.  

Last year, the first fund paid a dividend of 8% and the second a dividend of 5%, and you received a total of $1330.  

This year, the first fund paid a 12% dividend and the second only 2%, and you received a total of $1500.

Let the amount in Fund I be $x and amount in Fund II be $ y

Then, for last year ⇒ 0.08x+0.05y=1330 ----- eqn (1)  

And for this year ⇒ 0.12x+0.02y=1500 ------- eqn (2)  

Multiply (1) by 2 ⇒ 0.16 x + 0.1 y = 2660  

Multiply (2) by 5 ⇒ 0.6 x + 0.1 y = 7500

Subtract the two equations  

(2) ⇒ 0.6x + 0.1y = 7500

(1) ⇒ 0.16x + 0.1y = 2660

(-) --------------------------------

0.44x + 0 = 4840

x = 11000

Now, from eqn (2)  

0.12(11000) + 0.02y = 1500  

0.02y = 1500 – 1320  

0.02y = 180  

y = 9000

Hence, he invested 11000 in in 2st fund and 9000 in 2nd fund

5 0
2 years ago
Find the exact solution of x 3x^2+7=28
chubhunter [2.5K]

Answer

x^2 = 7

so yeah u could've looked it up

6 0
3 years ago
Read 2 more answers
Write the simplified form of (-0.5z + 0.9z) – (-0.3z + 0.9z).
Delicious77 [7]

Answer:

-0.2z

Step-by-step explanation:

0.4z-0.6z

-0.2z

8 0
2 years ago
I need help with these two problems. [9 and 10] FORMULAS GIVEN!!
zaharov [31]
<h2>Question 9:</h2>

1. Use Pythagorean Theorem (a²+b²=c²) to solve for missing side of triangle and rectangle. x²+16²=20², or x²+256=400. So, x²=144, and x=12

2. Use formula: 1/2(h)(b1+b2). 1/2 (12) (30+14).

3. Simplify: 1/2 (12) (44)=1/2(528)=264

Area of whole figure is 264 square mm.

<h2>Question 10:</h2>

Literally same thing but with trigonometry.

1. Use sine to find out length of dotted line: sin(60°)=x/12

2: Simplify: 12*sin(60°)=x. x≈10.4 (rounded to the nearest tenth)

3. Use Pythagorean Theorem to find out last leg of triangle: 10.4²+x²=12²

4: Simplify: 108.16 +x²=144. x²=35.84 ≈ 6

5: Use formula: 1/2(h)(b1+b2). 1/2 (10.4) (30+36)

6: Simplify: 1/2 (10.4) (66) =343.2

7: Area of figure is about 343.2

Remember, this is an approximate answer with rounding, so it might not be what your teacher wants. The best thing to do is do it yourself again.

4 0
2 years ago
Find the surface area of a cylinder with a radius of 4 in and a height of 6 in.
Elodia [21]
The answer is 251.33in2 but, if those are your only 2 choices it would be the closest one to that number which is 251.20in2
6 0
2 years ago
Other questions:
  • The circumference (C) of a swimming pool is 47 feet. Which formula can you use to find the radius (r) if you know that C = 2πr
    14·2 answers
  • Fill in the boxes?? Thank youuu
    11·2 answers
  • Write the exponential equation 3^7=2137 ad a logartithmic function
    10·1 answer
  • Round 72,130 to the nearest hundredth
    7·2 answers
  • I am thinking of a number.
    9·2 answers
  • I need help on the question . I have in math
    8·1 answer
  • The first 5 figures in a pattern are shown. If the patterncontinues, which expression can be used to find the number of circles
    14·2 answers
  • Helpppp plz will give brainliest
    12·1 answer
  • The coordinates of the midpoint of a HORIZONTAL LINE segment are (1,3). Which of the following are possible pairs of endpoints f
    5·1 answer
  • Write 2 / 3 of 4 as a mixed number. ​
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!