How many positive integers less than 1,000,000 have ex- actly one digit equal to 9 and have a sum of digits equal to 13?
1 answer:
<span>In one million there are 420 positive numbers with the sum of their digits equal to 13 and with one digit equal to 9</span>
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Since 4x=28,
x = 28/4 = 7
sub. x = 7 into the eqn,
29-5x = 29-5(7) = 29-35 = -6
45 will be the answer of 3 because 30 divide in 2 is 15. and 15x3 is 45.
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Answer:
x=1,
y=1/2
Step-by-step explanation:
4x-8y=0
so 4x=8y
x=2y
5x+2y=6
because x=2y
so:
5x+x=6
6x=6
x=1;
then
x=2y
1=2y
y=1/2
Answer:
(12/1.35)^2 ~= 79.012346
(roughly equal to ~=)
Step-by-step explanation:
divide both sides by 1.35
12/1.35 = √x
square both sides to get rid of √
(12/1.35)^2 ~= 79.012346
13.58....contains 1 ten, 3 ones, 5 tenths, 8 hundredths
