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
Varvara68 [4.7K]
3 years ago
12

How do you find the question mark on #4?

Mathematics
1 answer:
kiruha [24]3 years ago
5 0
64÷2 =32
90-32=58
58+58=116
360-116=244
?=244°
You might be interested in
How to write 28 divided by 7 as an expression
Korolek [52]

Answer:

28/7

Step-by-step explanation:

5 0
3 years ago
Tonya and Leo each bought a cell phone at the same time. The trade-in values, in dollars, of the cell phones are modeled by the
Paha777 [63]

Answer:

The answer is Tonya's phone had the greater initial trade-in value.

Leo's phone decreases at an average rate slower than the trade in value of Tonya's phone.

Step-by-step explanation:

Given

Tonya

f(x) = 490 * 0.88^x

Leo

x \to g(x)

0 \to 480

2 \to 360

4 \to 470

Solving (a): The phone with greater initial value

The initial value is when x = 0. So, we have:

f(x) = 490 * 0.88^x

f(0) = 490 * 0.88^0

f(0) = 490 * 1

f(0) = 490

From Leo's table

g(0) = 480

By comparison;

f(0) > g(0)

i.e.

490 > 480

<em>So: Tonya's had the greater initial trade-in value</em>

Solving (b): The phone with lesser rate

An exponential function is:

y = ab^x

Where:

b \to rate

For Tonya

b = 0.88

For Leo, we have:

(x_1,y_1) = (0,480)

(x_2,y_2) = (2,360)

So, the equation becomes:

y = ab^x

480 = ab^0 and 360 = ab^2

Solving 480 = ab^0, we have:

480 = a * 1

480 = a

a= 480

360 = ab^2 becomes

360 = 480 * b^2

Divide both sides by 480

0.75 = b^2

Take square roots

0.87 = b

b=0.87 -- Leo's rate

By comparison; Leo's rate is slower i.e. 0.87 < 0.88

6 0
3 years ago
Brian bought a 15 pound bag of comcrete. he split the bag into smaller bags that each hold two and a half pounds. how many small
Westkost [7]
Okay.  You have 15 lbs of concrete, and x bags that can individually hold 2.5 lbs.  What you need to do is divide 15 by 2.5, and the quotient will be 6.
Problem:  15 ÷ 2.5 = 6
So the answer to your problem will be: 6 bags.
3 0
3 years ago
Read 2 more answers
Two dogs run around a circular track 300 m long. One dog runs at a steady rate of 15m per second, the other at a steady rate of
mihalych1998 [28]

Answer:

300 seconds

Step-by-step explanation:

The first dog run at v₁ = 15 m/sec     the second one run at  v₂ = 12 m/sec

we know that  d = v*t  then  t  =  d/v

Then the first dog will take  300/ 12  =  25 seconds to make a turn

The second will take   300 / 15   =   20 seconds to make a turn

Then the first dog in 12 turns 12*25 will be at the start point, and so will the second one at the turn 15.

To check  first dog    12 *  25 = 300

And the second dog 15 * 20 = 300

That means that time required for the two dogs to be at the start point together is

300 seconds, in that time the first dog finished the 12 turns, and the second had ended the 15.

Another procedure to solve this problem is as follows:

between  12  m/sec and  15 m/sec   the minimum common multiple  is 300 ( 300 is the smaller number that accept 12 and 15 as factors         12*15 = 300) Then when time arrives at 300 seconds the two dogs will be again in the starting point

3 0
3 years ago
I need help with all of them
sveticcg [70]

I just answered this xD

1-3 is given as an example.

4. True

5. False. It is the same thing twice

6. True

3 0
3 years ago
Other questions:
  • An object travels 4/5 miles in one-half hour. what is it’s speed in miles per hour ?
    9·2 answers
  • How many solutions does the equation 9x-3(x+8)=6x-24 have?
    14·1 answer
  • Simplify the rational expression.<br> 6x(x+3)(x - 2)<br> 3(x - 2)(x+9)
    15·2 answers
  • 1/x-4 + 1/x+3 = x-6/ x^2-x-12
    12·1 answer
  • Jenny bought gas for her car. Gas cost $3.45 per gallon. She bought 12.2 gallons for her car. What was the total cost of gas for
    10·1 answer
  • Help pls!! this is a presentation I’m doing in class and I NEED this completed rn, ASAP!!! . What I need is just the answers for
    6·1 answer
  • Find the 8th term of the geometric sequence 10, -40, 160, ..
    14·1 answer
  • Amanda paid $59.00 for 8 pairs of shorts. At this rate, how much will she pay for 14 pairs of shorts? Round to the nearest hundr
    6·1 answer
  • What percent of the
    7·2 answers
  • Maxine earns $1250 dollars a month. whats is the maximum amount she should use for budget for housing?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!