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
hodyreva [135]
3 years ago
15

Explain how knowing 50 times 4 =200 helps you find 500 times 400.

Mathematics
1 answer:
ivolga24 [154]3 years ago
6 0

well 500 x 400 = 200000

it is the same as 50 x 4

just add a few more zero's

You might be interested in
How much of a spice that is 30% salt should be added to 175 ounces of a spice that is 65% salt in order to make a spice that is
klasskru [66]
\bf \begin{array}{lccclll}
&amount&concentration&
\begin{array}{llll}
concentrated\\
amount
\end{array}\\
&-----&-------&-------\\
\textit{30\% spice}&x&0.30&0.30x\\
\textit{65\% spice}&175&0.65&(175)(0.65)\\
-----&-----&-------&-------\\
mixture&x+175&0.50&(x+175)(0.50)
\end{array}

so.. as you can see, we use the decimal notation for the percentages... 65% is just 65/100 and 50% is just 50/100 and so on

so.. whatever the salted amounts are, we know they'll add up to (x+175)(0.50)

thus  (0.30x) + (175)(0.65) = (x+175)(0.50)

solve for "x"
5 0
3 years ago
Use technology or a z-score table to answer the question.
matrenka [14]

Answer:

D

Step-by-step explanation:

I usually use a z-score table, but you can do this with a calculator.

If we go to a z-score table, we first look up the first two digits (in this case, 2.8) in the far left column.  Then we find the hundredths digit in the top row (0.07).  Where they intersect is P(z < 2.87).

P(z < 2.87) = 0.9979

Answer D.

4 0
3 years ago
Determine the truth value of the given conditional statement
Dovator [93]

Answer: c

A false statement implies a true statement, so the conditional statement is true

Step-by-step explanation: just took the test

5 0
3 years ago
In the rhombus m1 = 10x, m2 = x + y, m3 = 18z. Find the value of each variable
Blababa [14]

I think the question is missing some details. I found a similar question with an image as i attached in this question.

From this image, it its clear that m1, m2 and m3 refers to the angles in the middle of the rhombus

Answer:

x = 9

y = 81

z = 5

Step-by-step explanation:

Note that in rhombus, all sides are the same. If the diagonal lines are made, it will create 4 division of angles of 90 degrees.

Therefore m1 = m2 = m3 = 90 degrees

m1 = 10x and m1 =90

So, 10x = 90. Rearrange it to get x = 90/10 = 9

x = 9

m2 = x + y and m2 = 90

So, x + y = 90

9 + y = 90

y = 90 - 9 = 81

m3 = 18z and m3 = 90

So, 18z = 90

z = 90/18 = 5

3 0
3 years ago
Jane has saved 600 dollars in a college fund. She added money to the account over the next year and at the end of the year the a
lianna [129]

Answer:

$290.00

Step-by-step explanation:

The equation would be 890-600=290 because if you subtract the base amount from the final savings it would give you how much she saved altogether.  

Hope this helps! :)

5 0
3 years ago
Other questions:
  • The diagram shows rectangle ABCD on a pair of aces. The lengths of its sides are 20 units and 5 units. The coordinates of point
    8·1 answer
  • What is another name for ray AE ?
    6·2 answers
  • Lol of 6,8 and 24,32
    11·1 answer
  • There are 125 students in sixth grade. 2/3 of the sixth graders ride the bus. How many sixth graders ride the bus?​
    9·1 answer
  • Please help, it’s urgent !
    8·1 answer
  • When you identify what goals are conflicting, it is a part of
    14·1 answer
  • Help me on this one for 10 points
    12·2 answers
  • What is the correct answer?​
    11·2 answers
  • I need help woth question and my test
    14·2 answers
  • What is the midline of the function graphed below?<br><br> y = 1<br> y= 0.5<br> y = 0<br> y =2
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!