What times what equals 90 ?

Mathematics

2 answers:

denpristay [2]2 years ago

5 0

10*9=90
30*3=90
45*2=90
18*5=90
15*6=90
1*90=90

Hope this helped!

aleksandr82 [10.1K]2 years ago

3 0

Well, hello again.

10x9
3x30
2x45
6x15

Next time, try making a factor tree if you need any more possibilities. Effort is the biggest part of success.

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You have 8 times as many dimes as nickels. You have 18 dimes

fenix001 [56]

Answer:

$1.70

Step-by-step explanation:

Let the number of nickels be $x$ .

Thus, by the problem statement, the number of dimes is [/tex] 8 \cdot x = 8x. [/tex]

Therefore, there are $8x + x = 9$ coins in total. To find what $x$ is, we need to solve the equation $9x = 18.$ This can be done by dividing both sides by $9$ which gives $x=2$ . Plugging these values in tells us that there are $2$ nickels and $16$ dimes. (Test it out!) Thus, the nickels are worth $2 \cdot 5 = 10$ cents and the dimes are worth $16 \cdot 10 = 160$ cents, so in all, you have $10 + 160 = 170$ cents which is $1.70.