9 hundreds = _____ tens

Mathematics

2 answers:

professor190 [17]3 years ago

8 0

Answer:

Step-by-step explanation:

900 in groups of 10 would need 90 groups to equal 900.

Mama L [17]3 years ago

4 0

Answer:

Step-by-step explanation:

We also have 9 tens, which means we can say 9×10=90. And we have 24 ones, which means we can say 24×1=24.

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A book club charges an initial joining fee of $18.00. The cost per book is $10.25. The graph shows the cost of belonging to the

Alex73 [517]

The question doesn't show any graph, but I have included it to help you with the problem.

Answer:

The new graph will be shifted up by 3 units

Step-by-step explanation:

Graph of a Real Function

The total cost of belonging to the book club depends on one fixed cost, the initial joining fee, and a variable cost, depending on the number of books purchased. Call C the total cost and x the number of purchased books, then

$C=18+10.25x$

By giving x some values, we get the corresponding values of C and then we can plot the graph as a blue line, in the image provided below.

If the joining fee goes up by $3, the new function is

$C'=18+10.25x+3$

$C'=21+10.25x$

The graph is also shown in the image, but with a red line. We can see the graph is shifted up by 3 units in the y-axis, but the slope remains the same, as the cost per book hasn't changed